ECU derestriction, what is it?

[wfo]

Hi all,

I've done a search but can't find the info anywhere.

Exactly what does the ECU code for the RSV4-R Akro slip-on do - is it just a remap?

Is it unique to a specific engine/ECU or can the same code be used for different bikes?

Can it be done by the owner or is there special stuff that the shop has to do?

Can a code be supplied (bought?) without the slip-on eg if I buy a brand X slip-on?

Thanks

:)

[Ed / AF1 Racing]

think of it like a ECU unlock code....with the code the dealer can load the Akra map into your stock ECU.....it gets entered into their Aprilia Navigator diagnostic computer, and allows loading the Akra mapping

the code is unique to one single ECU serial number....good only on that ECU forever which allows loading of any future mapping updates aprilia comes out with.

they do not sell the code seperately, but they are now selling a complete unlocked ECU pre-loaded with the Akra map. If you buy this ECU, your dealer will still need to plug in and perform the throttle and handle learning procedure. The throttle and handle learning is required with any map change as it properly calibrates the ride-by-wire system.

the code is included with any aprilia akrapovic system.....if you buy another pipe, you'll have to buy the ECU

[wfo]

thanks guys... so if I get an Akro slip-on, it should come with a code and if not, I'm stuck without it?

[Ed / AF1 Racing]

thanks guys... so if I get an Akro slip-on, it should come with a code and if not, I'm stuck without it?

the Aprilia / Akra pipes come with the unlock code.....the pipes direct from Akra do not, you will have to buy the unlocked race ECU as a seperate item

[wfo]

Right, thanks.

One more question: so to get an Akra pipe from Aprilia, you need to give them an ECU number and they'll provide you with a decode for that ECU?

[nycgotham17]

ECU & VIN + code included with your Akra pipe. A resulting code is then supplied to your dealer to complete the unlock. At least thats how I remember it, but I could be wrong.

[bartho]

What it means derestriction?
In France and Belgium the bike is sold with 75 Kw(100 Hp) power.
This means the ecu is restricted to this limit. The dealer can put 182 Hp via the navigator(axone) in to the bike by taking away the restriction in the ECUYou can see the restriction on the dash.
Is it that what you mean?

[RSVracer]

My first post in 3 years, LOL

So how have all of our forum members with non-Aprilia exhausts updated their mapping? Is everyone being forced to buy the race ECU?

I'm sorry but that just sucks. I cant believe Aprilia would blatantly block its customers from customizing their bikes.

edit: holy sh!t, I cant believe old avatar even shows up! hahahaha I'm putting down a deposit on a black RSVR tomorrow so I've been lurking around the forum again for a few weeks.

[Ed / AF1 Racing]

My first post in 3 years, LOL

So how have all of our forum members with non-Aprilia exhausts updated their mapping? Is everyone being forced to buy the race ECU?

I'm sorry but that just sucks. I cant believe Aprilia would blatantly block its customers from customizing their bikes.



huh?? they are not blocking anyone....in fact, they are helping all the people who didnt buy the factory Aprilia/Akra exhaust by selling them a ECU pre-loaded with the mapping they need.

[RSVracer]

huh?? they are not blocking anyone....in fact, they are helping all the people who didnt buy the factory Aprilia/Akra exhaust by selling them a ECU pre-loaded with the mapping they need.

I've never owned a bike where I was forced to purchase a $700 ECU just to make an aftermarket pipe run correctly. Even with my current Superduke I did not have this issue. KTM allows you to have the dealer upload their factory designed race map to their ECU free of charge. Just a small fee to the dealer for their time. I just think locking the standard ECU is a shady business tactic on Aprilia's part. Its like getting our $16-20k wasnt good enough. They had to milk an extra $700-2000 out of us if we want to dtich the stock exhaust.

[Ed / AF1 Racing]

I've never owned a bike where I was forced to purchase a $700 ECU just to make an aftermarket pipe run correctly. Even with my current Superduke I did not have this issue. KTM allows you to have the dealer upload their factory designed race map to their ECU free of charge. Just a small fee to the dealer for their time. I just think locking the standard ECU is a shady business tactic on Aprilia's part. Its like getting our $16-20k wasnt good enough. They had to milk an extra $700-2000 out of us if we want to dtich the stock exhaust.

its $750 for the ECU not $2000....its a complete ECU in its metal case....that race ECU can be sold later to someone else and used, it has value to the next owner. probably fetch $500-650 on the used market.

buy one of the factory Aprilia/Akra systems and its included....

look how Ducati does it.....same way as aprilia just way more expensive.

[RSVracer]

its $750 for the ECU not $2000....its a complete ECU in its metal case....that race ECU can be sold later to someone else and used, it has value to the next owner. probably fetch $500-650 on the used market.

buy one of the factory Aprilia/Akra systems and its included....

look how Ducati does it.....same way as aprilia just way more expensive.

When I said $700-2000 I was referring to the cost of purchasing an ECU or one of Aprilia's Akra branded exhausts. To me this seems similar to the Ducati method but a little shadier because the stock ECU has the ability to run a race map. There's no real need to purchase a race ECU. In fact, Aprilia went out of their way to make sure we had to spend the extra money with them. It would've been so much simpler to make the map openly available.

Oh well, I guess mine will stay stock until the PC5 is available. $1500 for a slip-on is just plain ridiculous and I'm not gonna waste $750 on an ECU when the power commander will give me more accurate mapping anyway.

[amauri]

When the power commander will give me more accurate mapping anyway.

Please bear with me while I try to explain why that reasoning is not quite right.

IMO, we need to apply the same approach to PC5 tuning on the RSV4 as we've all learned do with the PC3 on the RSV2.

When installing a PC3 on the V2 bike, you would first connect the AXONE and switch the ECU to variant-2 (AKA map-2) and fine tune further with a PC3/custom map if needed.

The key to successfully tuning the RSV2 with the PC3 was variant-2.
Variant-2 set the ECU into open loop mode, switched the fuel and ignition maps to a performance optimized map (not emissions friendly).
It really was pointless to install a PC3 on the RSV2 without first setting variant-2.

Now let's look at the RSV4, the same basic idea applies.
If you install a PC5 on top of the STD emissions tuned ECU map, you will not benefit much because the PC5 can't change ignition, especially USA bikes that are tuned to meet USA requirements.

IMO, when the PC5 or Bazzaz units become available, you should only install them and custom map on top of the performance ECU or map.

Remember that neither the PC5 nor the Bazzaz are able to alter ignition timing.

As far as Aprilia ripping us off by making us pay extra for the map or ECU, I guess it depends on how you look at it.

Yes it was included with the 04-09 RSV2, but it wasn't free.
You paid for it when you bought the bike.

In 2004, the RSV2 Factory retailed for $17,995.
In 2010, the RSV4 Factory retails for $20,995.

That is a 17% price increase in 6 years.

Considering inflation and depreciation of the US dollar, that's not much of an increase over the six years. Especially for the performance boost.

Aprilia had to cut costs to introduce the bike to the marked at a competitive price.
So now you don't pay for the map when you buy the bike, those who need it will have to pay extra for it.

[RSVracer]

If you install a PC5 on top of the STD emissions tuned ECU map, you will not benefit much because the PC5 can't change ignition, especially USA bikes that are tuned to meet USA requirements.

Remember that neither the PC5 nor the Bazzaz are able to alter ignition timing.

Yes it was included with the 04-09 RSV2, but it wasn't free.
You paid for it when you bought the bike.


Amauri,

A very well stated response, I must say. I have a few questions though regarding the statements above.

Has anyone confirmed the exact differences between the standard mapping and Aprilia's 'race' maps? Can we confirm that the race ECU or uploaded "variant-2" actually alters ignition timing?

If I'm not mistaken Dynojet offers an add-on module for the PC3 that will alter ignition timing.
http://www.powercommander.com/powercommander/Products/IgnitionModule/powercommander_ignition_module.aspx
It would only make sense to assume that they will have a similar module for the PC5. If this module does exist for the PC5, would that not make the race ECU obsolete/unnecessary? I actually miss the days when the PC2 on my RC51 would alter fuel and ignition timing.

How much did Aprilia charge for the map upgrade on the RSV2 bikes? I seem to remember some of the aftermarket exhaust companies issuing EPROM's with their pipes that could be plugged into the bike's ECU and give a good baseline mapping.

[amauri]

Attached are graphs of the ignition curve parameters recorded with a data analyzer probe we attached to my 07 RSVR Siemens ECU.

Dyno Jet has listed a ignition module for the RSVR on their website for years, but they have never been able to produce it.

99-03 RSV and SL bikes had swappable EPROMS that Aprilia supplied with the exhaust system kit.
04-09 had two maps already in the ECU, the dealer would typically switch maps for you as part of the exhaust install labor.

[slowmike]

Very informative post! Thanks Amauri!

[amauri]

What it means derestriction?
In France and Belgium the bike is sold with 75 Kw(100 Hp) power.
This means the ecu is restricted to this limit. The dealer can put 182 Hp via the navigator(axone) in to the bike by taking away the restriction in the ECUYou can see the restriction on the dash.
Is it that what you mean?

Bartho,

I've heard of this limited power restriction on the RSV2 bikes meant for the French market. They had a mechanical stop on the throttle linkage that prevented 100% throttle openning.

Not sure how it is on the V4 but I imagine it works with software to keep it from openning all the way.
Hopefully one of the French techs will be able to post some more info on this.

[Poussin]

French bikes are limited to 78 Kw by law.

To remove the limitation, the dealer uses the Axone (no need of mechanical action).

If you buy the "after market ECU" (with maps for akros, leos ...) in France, it comes with the same 78 kw limitation, so the dealer need to use the Axone to void it.

[Silas]

so, does anyone have a dyno map of how the bike with a race mapped akra slip on compares to one without? it would be good to see the exact difference across the range, delivered by the map.

[Silas]

French bikes are limited to 78 Kw by law.

To remove the limitation, the dealer uses the Axone (no need of mechanical action).

If you buy the "after market ECU" (with maps for akros, leos ...) in France, it comes with the same 78 kw limitation, so the dealer need to use the Axone to void it.

Poussin, do a lot of French riders ignore the law or does everyone on sport bikes just track them? I've been reading that the EU will take a decision on having one rule in all countries (like they did with the license). At the moment it looks like they might get France to remove the limit rather than impose it on everyone else. I really can't see the Spanish ever abiding by that rule.

[Poussin]

Poussin, do a lot of French riders ignore the law or does everyone on sport bikes just track them?yes, a lot of riders set the bikes free. But the fines (for the dealer and the owner) have become very high. So it seems that more and more riders let the bikes with the 78 kw limitation. More and more dealers refuse to free the bikes unless you can show a track license.


I've been reading that the EU will take a decision on having one rule in all countries (like they did with the license). At the moment it looks like they might get France to remove the limit rather than impose it on everyone else.The French law is contrary to the EU rules, and since many years, the EU try to brake this law, but the French government find arguments to keep the law.

[darrenb]

I have heard the mapping isnt that different. I put an after market LeoVince muffler on for a bit of sound and it hasnt effected the performance at all - at least not enough to notice. Why bother paying $ for ECU.

[Resurrection]

I'm also running the Leo and was hoping the stock ECU would self adjust as my dealer stated. But I can tell there's a difference, backfiring being the main giveaway, and even if it does adjust air/fuel slightly I don't think it will ever be optimal for an aftermarket pipe. I hate spending the money for a race ecu but since I want the bike to "be all it can be", I ordered it.

[Chris_Mag]

I have a Leo EVO II slip on which I ran for a few days w/ baffle in. First chance I had, I put the bike on the dyno to run a/f tests at various static engine speeds... the bike was sitting around 15:1 A/F at ~5k RPM @ 15% throttle (basically, my commuting speed and throttle position). The bike was ok in terms of A/F at WOT, but way lean at certain smaller throttle openings and lower RPM, which is what Ed from AF1 warned me about. Also, the fueling felt strange - not as good as w/ the stock system below 7k.

I decided to not taking any chances with my motor - I put the stock pipe back on and will pick up an ECU when $ allows.

[wfo]

I get a bit of popping with the Akra slip-on and V2 ECU map - is this normal?

[Jon / AF1 Racing]

We have tested the bike on the dyno with a slip-on and full system with stock mapping. The bike is dangerously lean and you risk damage to your engine. This damage would NOT be covered under warranty, because the aftermarket pipe without proper mapping would be responsible.

For those with questions about getting RSV4 Race mapping vs. the Race ECU, please contact me. I will be happy to describe the process and options.

jon@af1racing.com

[Chris_Mag]

My impression so far is that the race ecu+slip-on is nearly a must-do for this bike.

At idle with the Leo sans db-killer, it has a staccato resonance which reminds me a bit of a helicopter flying at a distance, and it also has a noticeable vibration at idle which kind of pulses, like a cat purring in the form of a sportbike. I know it probably sounds weird, but it really is like that.

The bike is loud w/o the removable baffle, but it's not obscene when cruising below 6k RPM. It's definitely not any louder than a friend's 2000,5 Mille R w/ the Aprilia Akra Ti system. With the db-killer installed it's quieter than stock.

As far as power delivery, the bike will now lope along at below 3k RPM, but it's still happiest at 4k+. The engine builds power more effectively (and aggressively) from 4k rpm. Power above 7k feels similar, with a bit more power on-tap, and it seems to make power through the top of the rev range like it's breathing a bit better. Overall, the bike's power delivery seems more seamless from 4000 rpm on up, and it seems to rev through that range more quickly, especially in the lower gears.

I only have limited totals for fuel economy so far, but from the Airport Way Sharis to Zig Zag, by way of Bull Run (low-medium speed switchbacks w/ lows of elevation change), the bike averaged ~27mpg (actual), with several miles of stop and go riding at the beginning, but that's not a fair sample size because the bike only took 2.27g when I refueled.

My guess is that fuel consumption is reasonably close to the stock map if you're not hammering it, but I need to log more miles to be sure.

[quattro]

does anybody make either a dyno test or seat-of-his-pants test to judge how much improvement there is from stock to aprilia map+ aprilia-direct akrap full system?

i'm still contemplating if to spend the extra $$$for the system + map? ..but no concrete information to make decision...

Any inputs will be much apreciated.

Sold of my ducati s4rs, but while i have it, ducati sells termi and ecu by providing torque/power curve improvement published. it allows me to decide better if to spend the money, i did get the system then.Of course there is a gamble but at least curves are provided for references.

Why can't aprilia do the same?i always like going for oem stuff (system/map) because they spent hours on testing/lifetime degradation to failure/software adjustment/optimization...bla..bla bla..

Aftermarket system, do they spent enough time testing or those of us who bought them are actually the "test engineer/s" testing them at our own risk......(no warrantty, engine failure at your risk,lifetime reduction)

testing = $$$,maybe that's why it cost much if from oem...

[amauri]

Dyno readings on this bike are not accurate, you can see that when you start reading the various magazine tests showing vast differences in what they've recorded.

The ride-by-wire system determines how much power to deliver at any given situation based on torque demands.

Someone holding the throttle 100% open on the Dyno doesn't necessarily mean that the ECU is going to release 100% power.

Here is one example of Dyno runs with multiple configurations that resulted in very little change:
http://www.apriliaforum.com/forums/showthread.php?t=205679

[quattro]

I get a bit of popping with the Akra slip-on and V2 ECU map - is this normal?

i thought popping sounds great when engine braking...
Anyway, Do you "feel" a significant improvment in terms of torque/pull with the akrap slip-on and derestricted map?

thanks!

[wfo]

i thought popping sounds great when engine braking...
Anyway, Do you "feel" a significant improvment in terms of torque/pull with the akrap slip-on and derestricted map?

thanks!

it sounds good, yeah! I still have the cat link pipe though and I imagine it'd be even better with the straight through (Steve/AF1/anyone, is it possible to get a straight through on its own?)

as for feel... I do remember thinking there was a slight improvement with the akra and v1 map, but I don't remember what it was! (duh) the v2 map improved throttle response for sure - it definitely feels better than the v1. Power wise I haven't noticed any difference that I wouldn't otherwise put down to the placebo effect, but that's not to say there isn't one.

[quattro]

it sounds good, yeah! I still have the cat link pipe though and I imagine it'd be even better with the straight through (Steve/AF1/anyone, is it possible to get a straight through on its own?)

as for feel... I do remember thinking there was a slight improvement with the akra and v1 map, but I don't remember what it was! (duh) the v2 map improved throttle response for sure - it definitely feels better than the v1. Power wise I haven't noticed any difference that I wouldn't otherwise put down to the placebo effect, but that's not to say there isn't one.

Just got my ECU reflashed with the updated map. Fix a EVO2 slip-on and my findings of pooping is consistent with yours. It is easy to reproduce the popping especially after i throttle hard and slamed shut, followed by deceleration.Still love the sound!(warns drivers of your approach, kind of a improve safety , i guess)

Did some reading and realise, it is due to the ECU injecting air (like a secondary air valve) to give unburnt HC (hydroCarbon or simply fuel) a 2nd chance to burn/combust in the exhaust before going out to the environment. This happens when the O2 sensor feedbacks to the ECU that the engine is experiencing rich burnt.Does not affect engine performance since it is a "after treatment" in the exhaust stream.

Whats the objective? yep, to bring down HC which togather with the CO and Nox are pollutants.CO2 is being closing watch too.

[zgriders]

I have heard the mapping isnt that different. I put an after market LeoVince muffler on for a bit of sound and it hasnt effected the performance at all - at least not enough to notice. Why bother paying $ for ECU.

That is what I thought also. However, after installing the race ECU with the latest map from AF1, and the Austin V2 slip-on, the bike has made an impressive improvement, especially when riding in the mid-range. I did not expect the race ECU to make much of a difference, but it noticeably improves the feeling of the bike...the raw power seems to be released smoother, with more grunt (like a real racebike). If you think your RSV4 is good now, wait until you install the race ECU...it gets much better!

Many thanks to AF1 for sending the ECU with the updated map so quickly, especially in the holiday season. And many more thanks to Amauri for taking time out of his schedule to help me install the ECU, and perform the learning...I would not feel comfortable taking my bike anywhere else :cheers:

[Jaguar]

its $750 for the ECU not $2000....its a complete ECU in its metal case....that race ECU can be sold later to someone else and used, it has value to the next owner. probably fetch $500-650 on the used market.

buy one of the factory Aprilia/Akra systems and its included....

look how Ducati does it.....same way as aprilia just way more expensive.

I'm surprised at AF1 defending Aprilia on this, quite frankly. OK, so the $800 gets you a whole ECU - but even if you take the "cheap option" of the $880 kit with the Leo slip on plus air filter plus derestricting your ECU, you are effectively paying $330 for the derestriction code.

By contrast, the RSVRs have map 2 ready to go and you just needed your dealer to spend a little time with the Axone switching.

This looks like a backward step into cynical business practices to me - and the fact that Ducati also does it is not an excuse - it's just confirmation of my view.

[pai69]

Just got my ECU reflashed with the updated map. Fix a EVO2 slip-on and my findings of pooping is consistent with yours. It is easy to reproduce the popping especially after i throttle hard and slamed shut, followed by deceleration.Still love the sound!(warns drivers of your approach, kind of a improve safety , i guess)

Did some reading and realise, it is due to the ECU injecting air (like a secondary air valve) to give unburnt HC (hydroCarbon or simply fuel) a 2nd chance to burn/combust in the exhaust before going out to the environment. This happens when the O2 sensor feedbacks to the ECU that the engine is experiencing rich burnt.Does not affect engine performance since it is a "after treatment" in the exhaust stream.

Whats the objective? yep, to bring down HC which togather with the CO and Nox are pollutants.CO2 is being closing watch too.


Hi Quattro, just a quick question..you reflashed your ECU in Spore?
If that is true, do you mind helping me with the re-flash when the time comes?
I'm from KL..thx, pai

[quattro]

Hi Quattro, just a quick question..you reflashed your ECU in Spore?
If that is true, do you mind helping me with the re-flash when the time comes?
I'm from KL..thx, pai

Hi if you made it to Singapore, just contact
6396 0230
6396 0231

and look for Gabriel, he will have the tools to flash the updated maps.

Shop add:
1 Kaki Bukit Ave 6 #02-60
AutoBay@Kaki Bukit
Singapore
417883

Cheers!

[pai69]

thx for the info...enjoy ur ride
rgds, pai

[crustysphinkter]

hi all,
I'm looking for a second hand factory with the akra exhaust and remap, is there any way i can tell if it has had the ecu done? i.e any changes in the display on the clocks or something? cheers.

[super8neon]

hi all,
I'm looking for a second hand factory with the akra exhaust and remap, is there any way i can tell if it has had the ecu done? i.e any changes in the display on the clocks or something? cheers.

It will have the word " RACE " in the instrument cluster.

[crustysphinkter]

It will have the word " RACE " in the instrument cluster.

Ta
crusty

[buckmaster]

Can i get the race map installed and still use the stk pipe ? I plan on getting the austin gp but not right now . Not enough funds to do everything @ once ..

[Pete Gala]

No u shouldn't. I have been advised that leave it as it is until u install the pipe. U get no gains from installing the race map with a stock exhaust.

[mohammed87]

is it bad for the engine to ride the bike with akra fullsystem without the race ecu ? does it harm the engine or not ?

[MarkyPancake]

is it bad for the engine to ride the bike with akra fullsystem without the race ecu ? does it harm the engine or not ?

I suggest reading the sticky thread at the top of this very forum:

http://www.apriliaforum.com/forums/showthread.php?t=220863

[Pete Gala]

is it bad for the engine to ride the bike with akra fullsystem without the race ecu ? does it harm the engine or not ?

Yes it does as it runs very lean. And hence will do damage to ur valves etc. So do not not run the pipe without the map it WILL cause damage.

[mohammed87]

Ok thanks guys for helping

[slrkappa]

I also just had my ECU updated with the Akro Race map and have noticed a good bit of difference. Especially in the bottom end grunt. Its just sick. I can even tell a difference in the sound it makes. It just sounds meaner now. I will have full dyno details soon. So far I installed a Bazzaz and got 144hp with their own map. Then Curt Jordan of Jordan Engineering tuned my Bazzaz to make 149hp and then 156hp but my bike was getting 18 MPG on the highway!!! I have a long trip to work so this was no good for me. I since have removed the Bazzaz Fi-TC with AFM and bar switch and asking $500 for the whole setup if anyone is looking for one. Then Curt Jordan had an old friend that used to make race pipes for Muzzy build me a 1lb race pipe for the RSV4. Now with this new lightweight race pipe its CRAZY loud and only good for race tracks IMO but the bike then dyno'ed at 156hp on the bikes STOCK map. I now have the slip-on Akro, stock pipe and 1lb race pipe with the Race Map installed and hoping to get a new dyno run mid next week. I can't wait to see what the Race map difference is. I'm guessing like 162hp or so. :devil:
So if anyone wants the full Bazzaz Fi-Tc feel free to hit me up at 210-771-6675. I also have a short lil GPR race pipe for sale as well. Its the dual shotgun looking one. I used it a few times but its just too loud for my neighborhood. I paid $450 for it but Ill sell it for $200!

[potere]

If you live near Monterey, you have to consider putting the stock pipe back on if you want to track at Laguna with it's 92db limit so...

if you have an Akra slip-on and ECU derestricted, it sounds like either you buy a stock ECU to use with the stock pipe or forget Laguna

If there's a different way around this, let me know. I already bought the Akra slip-on.

[swannie007]

Does the race ecu work with any after market slip-on? I ask because I will be taking delivery of a Tuono V4 next month and don't like the look of the Akra or Leo slip-ons and am considering a Werkes slip-on as it is much shorter and I prefer this look and I love the sound as well.
I must say that I am most disappointed with Aprilia for forcing us to pony up a stack of cash to buy a race ecu to run an after market slip-on. I don't mind paying the dealer a reasonable amount to reflash my ecu but having to buy a race ecu to run an after market slip-on is tantamount to extortion IMO. I hate being extorted! Just my 2 cents.

[Pete Gala]

Yes the Race ECU is specific to after market slip ons.

[colacin]

If you live near Monterey, you have to consider putting the stock pipe back on if you want to track at Laguna with it's 92db limit so...

if you have an Akra slip-on and ECU derestricted, it sounds like either you buy a stock ECU to use with the stock pipe or forget Laguna

If there's a different way around this, let me know. I already bought the Akra slip-on.

How does that work? The stock pipe is homologated at more than 92db. I'm pretty sure the badge on the headstock says 102/105db.

[MarkyPancake]

There's a track close to where I live that's really strict on noise and a lot of the modern road legal bikes in stock form don't pass their noise restrictions.

[DuctTape]

Does the race ecu work with any after market slip-on? I ask because I will be taking delivery of a Tuono V4 next month and don't like the look of the Akra or Leo slip-ons and am considering a Werkes slip-on as it is much shorter and I prefer this look and I love the sound as well.
I must say that I am most disappointed with Aprilia for forcing us to pony up a stack of cash to buy a race ecu to run an after market slip-on. I don't mind paying the dealer a reasonable amount to reflash my ecu but having to buy a race ecu to run an after market slip-on is tantamount to extortion IMO. I hate being extorted! Just my 2 cents.

It's not just Aprilia but Ducati too. Luckily we aren't stuck with the OEM race ECU with the Ducati (The MV too) because of the fine folks at Microtec. http://www.microtec.cc/cms/en/component/content/article/18

As for the noise restriction that's why I went with the GP2 exhaust. With the GP2 you can buy and install different size baffles for both the link pipe and Can to quiet it down............. or not, depending on the track and or your local LEO.

[Rspec99]

Good FYI from Amauri about retaining unlock codes for ECU.

http://www.apriliaforum.com/forums/showpost.php?p=2945296&postcount=412

[darrenb]

I just put an after market slip on myself two years ago, and its run fine. A bit louder and raspier, and thats all I wanted.

[corsa2]

I just put an after market slip on myself two years ago, and its run fine. A bit louder and raspier, and thats all I wanted.

There you go!! thats what i am saying from the start!! Just put a slip on and you are good to go!! No other stuff needed!! If you want more HP and more low-mid-end etc.etc.(Stuff that are gonna really make a difference) then go buy a full titanium exhaust.If you are gonna do something...do it right!!!

[Nick - Oslo]

Ed / AF1Racing: I just recently ordered that acra slip-on like the described above from you to my new RSV4. I plan to do the change myself. But as I am not the typical mechanics, I wonder wether the job to get hold of the ECU s/n is a difficult one. I understand the ECU is placed under the tank. Is it difficult to raise the tank to get the number, or is it simply to unbolt and lift. (My workshop who will service and du the unlock is some 100km away...Please advice on procedure /tips and hints, or if you reccomend to get the bike down to my mechanics...

BR Niklas. (RSV4 APRC Factory MY13).