I just had the Stillen SC installed and only used what Stillen provided, the only addition to my kit was that I added a Stillen oil cooler and a 9PSI pulley. I already had Fast Intentions resonated HFC's with Meisterschaft full catback exhaust. She is running incredible!
Your exhaust setup will be just fine. I am on the stock clutch/flywheel and so far feels great but I won't try to launch the car with it lol. Clutch/Flywheel is next!
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