Quote:
Originally Posted by Endgame
O.K. Two questions:
1. DD - you responed to one of my questions on this earlier regarding HFCs. While the HFCs will not make that car THAT much louder, you noted they would change the tone. If I was running an Amuse R1 Titanium catback and Y pipe, would HFCs make the Z louder? I am not sure if that can truly be answered, but I appreiciate any thoughts.
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Yes they would make it louder. The stock cats restrict more noise than high flow cats do no matter what setup you have for the rest of your exhaust.