Thread: WTB: challange street X pipe
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      09-12-2016, 12:17 PM   #3
e92m333
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Drives: e92 m3
Join Date: Apr 2016
Location: Toronto

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Quote:
Originally Posted by Ggeezer View Post
I have a catless RPI xpipe for sale if you're interested. Bigger hp gains than Challenge.
how much gain?
what is the setup? any droning sound?
does it fit stock exhaust ?
Appreciate 0
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