Just want to know what you guys think about "H" or "X" pipe exhaust crosover sections that seem to be for sale everywhere. Does it give you a hp boost? Is it just hype? Does anyone here have one installed on your M? I'm curious. :help:
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Just want to know what you guys think about "H" or "X" pipe exhaust crosover sections that seem to be for sale everywhere. Does it give you a hp boost? Is it just hype? Does anyone here have one installed on your M? I'm curious. :help:
never heard of it. Do you have a link to where some is talking about? Are you possibly refering to the active autowerke track pipe? check it out: www.aatuing.com
Good Luck with finding what you are looking for!
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