All Things Mk5 > Performance Modifications
Exhaust question
Janner_Sy:
The exhaist has 2 parts
1 - Downpipe with sports cat(From turbo to centre of the car..ish) - This is where the power gains come from.
2 - Cat back exhaust (from the centre of the car to the tail pipes) - This is where you get the gains in noise but not any power.
The TBE is both of the above in one package.
The cat back will require no software tweaks. The downpipe will normally requuire a map tweak to stage 2.
Id rather go the downpipe route personally. I think the cat back is a waste of money. More the icing on the cake if anything
Gtiain:
--- Quote from: Janner_Sy on March 30, 2012, 11:47:22 am ---The exhaist has 2 parts
1 - Downpipe with sports cat(From turbo to centre of the car..ish) - This is where the power gains come from.
2 - Cat back exhaust (from the centre of the car to the tail pipes) - This is where you get the gains in noise but not any power.
The TBE is both of the above in one package.
The cat back will require no software tweaks. The downpipe will normally requuire a map tweak to stage 2.
Id rather go the downpipe route personally. I think the cat back is a waste of money. More the icing on the cake if anything
--- End quote ---
Thanks for that.
Is it possible to run a bigger down pipe without having a map (yet) or is this just not possible?
Janner_Sy:
sometimes yes, sometimes no. It will normally bring up the CEL. Its not an issue tbh, just the car recognising the extra flow over the cat being much higher than normal so it thinks something is wrong.
Gtiain:
--- Quote from: Janner_Sy on March 30, 2012, 11:52:51 am ---sometimes yes, sometimes no. It will normally bring up the CEL. Its not an issue tbh, just the car recognising the extra flow over the cat being much higher than normal so it thinks something is wrong.
--- End quote ---
Right, I presume that would cause an mot fail?
56OctyVRS:
It would under the new regs, but a simle remap would fix that. I opted for the TBE from BCS. It does make more noise than standard and I managed to embarass my neighbours 911 carrera II 3.6 for pure aural sound. However BCS do make a system which is actually quieter than standard but has all the beneifts of a performance system.
My exhaust is as I wanted it. Quiet on part throttle and cruising but when you open the throttle it comes alive. Even the missis approves so it must be good! :signLOL:
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