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I am interested in removing my Catalytic Converter. My bike is 2012 1090 RR. My existing stock exhaust is welded to the cat. The following kit is by Arrow and has no ECU. Do I need a new ECU

http://www.evolutionbike.it/mvagustastore/index.php/exhausts/brutale2010/arrow/71450mi.html

Also I noticed the official MV corse pipe is almost 400 euros more, but comes with a 290 euro ECU. I thought Arrow made the Mv Corse pipes

http://www.evolutionbike.it/mvagustastore/index.php/spsciinox10.html

Is the only difference between these two the ECU or is there something else going on?

Thanks
 

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Billyray22, you don't say where in this world you reside. That makes helping a bit troublesome as different areas of the world have different rules and access.

If you have a Magnet Marelli 5SM ECU, then:

There is nothing different about the ECUs ... except for MAPPING. I have the race ECU for the 1090RR and I will be dumping that map into my wife's 2010 1090RR when I put the MV Corse Full Titanium exhaust on that bike. The current ECU will stay in place and I will have that ECU flashed with the new map, and then I will have that ECU map Dyno Tuned.

Billyrayy22, I would appreciate it, as would the greater forum community, if you would tell me what ECU is on your 2012 1090RR.
 

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I live in Encinitas, California. (North San Diego). I put that in my registry, but it did not pop up. I will look at my account info--a very distinct possibility that I set it up wrong. I do not know the part number of the stock ECU and I believe it is under the tank that I have yet to remove...Only had it a week

Thanks
 

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All good now Mate.
In theory, this is how it works mate, or at least the factory reasoning behind it all.
There is a Lambda (Co) sensor on that standard exhaust of yours, if the remove the Cat, then there is no place/use or need for the sensor, so the "Race" ECU has been re-mapped to accept the disconnection of that sensor.
Theory has it that if you remove the Cat, and do not re-install the Lambda sensor or install the "Race" ECU, the bike will either run badly or go into some sort of "limp" mode - in theory okay.

I can't comment on how that goes with the 1090, but I know of a 1078 running around quite fine on a Standard ECU with Cat removed, and all the guy did was get a bung welded onto the new mid-pipe to install the Lambda sensor into. This might not work on your bike though.
 

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works the same Donsy,just get the mid pipe and headers,arrow by memory,then get a race ecu to disable the lambda sensor,now a big warning it will run like shit,you then need a pc5 and get it dyno tuned. or you can look at chris from x bikes microtec,your call

cheers eddy
 

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Cool, thanks Eddy, I thought you might jump in, I was looking for that thread of yours about swapping/cutting out the mid-pipe...that was good man.
On a side note, great thread on the gearbox spring replacement, I might move that from the Brutale to the maint section if you don't mind mate?
 

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Matt,try it,but yes you will need a pc5,and dyno,your air and fuel mix will be out by miles. carbone build up otherwise will kill your bike over time,your mileage will increase greatly.Like this is my recommendation,tony brutale has a 1090rr and is getting 300km out of a full tank of 23 litres,beat that.
 

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I've recently installed an Inox manifold with lambda sensor original ECU + mufflers and it's running very well,by the seat of the pants it's got a bit more torque,more topend rush and i wouldn't wont it any louder.Cheers Steve
 

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Hi Steve, you getting any backfiring at all,snatchy throttle down low,on and off at all,just wondering?
km per tank ?
 

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Hi All,
I have the same set up as Steve B and it works fine, had it dynoed and no problems at all, the lamda sensor makes sure it doesnt run too lean or too rich, my Dyno place did tell me that if i put a filter and race slip on's then i would probably need a PC V to help out, but I do NOT need a race ecu or any other ecu. As fo noise its nice and not intrusive and doesnt attract the boy's in blue!!

James
 

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All asked for was a before and after run and make sure all TPS settings etc were good, so no actuall " Tuning" took place just base reference's.

James
 

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I am interested in removing my Catalytic Converter. My bike is 2012 1090 RR. My existing stock exhaust is welded to the cat. The following kit is by Arrow and has no ECU. Do I need a new ECU

http://www.evolutionbike.it/mvagustastore/index.php/exhausts/brutale2010/arrow/71450mi.html

Also I noticed the official MV corse pipe is almost 400 euros more, but comes with a 290 euro ECU. I thought Arrow made the Mv Corse pipes

http://www.evolutionbike.it/mvagustastore/index.php/spsciinox10.html

Is the only difference between these two the ECU or is there something else going on?

Thanks
Billy,

I have the same Arrow setup on my 1090RR with the original ECU & mapping. It runs fine, no issues. I'm glad I made the switch, it sounds much better without being obnoxious, seems to have better pull & there's far less heat coming from under the bike where the original boat-anchor cat was. The bike cools down much faster now.
Good luck & have fun with it.

Cheers,
Glenn
 
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