Right Muffler: 996.111.121.55 Left Muffler: 996.111.122.55 Right Tip: 996.111.251.55 Left Tip: 996.111.252.55 Looking to make them a fister exhaust so really trying to verify mounts and tips. Please advice.
Discussion summary
YOUR RESEARCHWould these mufflers fit on a 2002 c4?
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I believe they will fit. This link has some pretty good information. http://www.renntech.org/forums/topic...ation-36l-34l/
Link says that you can put a 3.6L exhaust on a 3.4L but should not do 3.4L to 3.6L due to restriction. see http://www.renntech.org/forums/topic...-34l/?p=209851 If doing a Fister mod, would this still matter?
I believe the Fister mod is just putting a bypass pipe in the muffler. This would reduce restriction (back pressure) and increase noise. It all depends on what your engine is tuned for. I put a Fabspeed supercup exhaust on my car. This reduced the back pressure dramatically and made it much louder. However I thought it felt like I lost some power. Then I had an ECU tune and gained back all the power and more.
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