jdm v7 sti Down-pipe question(s)
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11-16-2012, 05:59 PM
2004 Spec-C Type RA
What MAF? -Speed Density!
A V7 downpipe is going to be similar to a US WRX or STI factory downpipe, and they are all very restrictive.
An aftermarket catted downpipe is going to flow way more than a factory downpipe.
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