Thread: SBP Expansion Exhaust Review.
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Old 05-11-2009, 11:25 PM
Zippster Zippster is offline
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Join Date: Oct 2008
Location: Austin Texas
Posts: 28
Default Re: SBP Expansion Exhaust Review.
For you guys who'd know this (you know who you are): How much of a difference does it make to add the extra muffler off SBP for the pipe in terms of noise level and tone? Does it really not affect performance?
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