Originally posted by todras:
Not when people make claims of grinding down a wall on the stock y-pipe being better than an aftermarket y. I'd bet the POS MSDS will even out flow it. 
http://www.contour.org/mods/mods.php?s=howto&displayid=27
I'd be happy to get an optimization from you too pole. i'll have to keep in touch with your girlfriend to find out when you're not so busy doing other things. 
98' Black SVT
Build #1915 of 6535
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