3" cat back install, gutted post cats, boost guage flutters.......
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KillA6
S4 / RS4 (B5 Platform) Discussion
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08-07-2008 06:47 AM
daves4izzle::ASP 3-
S4 / RS4 (B5 Platform) Discussion
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05-27-2007 04:36 PM
starting ...
A4 (B5 Platform) Discussion
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04-01-2006 01:47 PM
will a diverter valve vent off air if too much back pressure is put on it? If it is working right---
s4india
A4 (B5 Platform) Discussion
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05-01-2003 10:52 AM