Quote:
Originally Posted by Waldmanboy235
Going Catless with the Down-pipe on a turbo car gives huge perforce gains..... can't forget that. I went with the Evolution Racewerks down-pipe to stock exhaust and not only was the performance gain very present but the sound is awesome too.
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It will also void warranty, maybe after the first 60k ill go catback, for now it has to be axel, and sport cat