Thread: what size downpipe?
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Old 12-05-2008, 10:10 AM
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BNaylor BNaylor is offline
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Re: what size downpipe?
Quote:
Originally Posted by grandprixgtx00
I'm pretty sure the GP's come with 2.5" exhaust
More like 2 1/4" (2.25"). Also, the stock downpipe is double walled meaning it is two pipes in one. The inner pipe diameter is around 2.0".



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