Quote:
Originally Posted by Tio///M
I'll let you guys know whats up when I get the challenge in and on the M3.
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Hi Tio///M, Have you received your Challenge X-Pipe yet? Wanted to know your thoughts on this X-Pipe (street version) as I am also considering them to enhance my Akra slip-on. Does it really improve hp and torque? Does it increase the volume or exhaust noise a lot? Please advise. Thanks!