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BMW 3-Series (E90 E92) Forum
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who has a stick? I have the horse. vrsf vs cobb exhaust.
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03-11-2017, 04:30 PM | #1 |
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who has a stick? I have the horse. vrsf vs cobb exhaust.
I have a n54 FBO and sometimes I use e85.
cobb offers the single exhaust measuring 3" vrsf offers the single exhaust measuring 3.5" can I get away with running 3" exhaust? I am making 425whp |
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