Quote:
Originally Posted by SGent
Trying to decide on a quad exhaust setup.
Need recommendations on exhaust options...not trying to break the bank, but also want decent sound.
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Been lots of discussion regarding quad tips on this forum. Definitely do some searching. I love my set up. Swapped my mufflers for M6 and then had burnt blue 4.0" tips welded on. I am incredibly happy with that set up. Now, you have a 640 so I don't think you have the vacuum line to hook up to the M6 mufflers. Not sure if that is a big deal. Also, not sure how the M6 mufflers sound on a 640. I love the sound on my 650 though. Best of luck. See post below for how my car ended up.
http://www.6post.com/forums/showpost...2&postcount=11