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      10-27-2012, 12:38 PM   #8
Chriskm3
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Drives: M3
Join Date: Jul 2012
Location: Toronto

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Quote:
Originally Posted by pbonsalb View Post
I have been running the top speed x-pipe for a year. Paid $475 shipped. It was too loud since it has no cats and no resonators so I added 4 resonators. They cost $200 plus $150 for welding. I did the cutting and tack welding and test fitting. I think top speed sells one now with two resonators but I wanted 4 for extra civilization.

I could have made an x-pipe or modified a stock pipe or bought a much more expensive brand name pipe, if I thought the expense and result would be worthwhile.
is this on a stock exhuast or aftermarket? have you noticed an HP increase after the swap>?
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