Quote:
Originally Posted by Bavarian54bimmer
Sup Guys!
Title might be not clear enough, what am wondering is :
Is the OEM Perf Exhaust considered an upgrade that will suit let's say a COBB Aggressive map that requires an upgraded Cat back or do we necessarily need to go to the aftermarket in order to use these maps requiring an Exhaust upgrade ??
Thank you
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I have it on my car and like others are saying it is a bit more free flowing. all it does is delete the res on the factory mid pipes and it has a larger piping. if you were to get the n55 mids with this exhaust then yeah i think it will be perfect for the cobb aggressive mapping. i have the cobb also and i am running the 93 octane map and that is more than enough power. i do have an intake snugged in their. but unless you get upgraded dps and then a full cat exhaust you def won't be able to run the stage 2 or stage 2 + mapping.
run the 93 octane for now until you get more mods.