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How much restriction can a Cat be?



Rick,
   I had a test pipe instead of a cat for about 6 months.  I think it 
was just louder with no power gain.  I ended up driving easier because 
at full throttle,  I couldn't even hear the radio!  I then put on a tt 
high flow unit.  The power feels the same, the sound is at a much better 
level for me and the sound is deeper.

Rick Kellner wrote:
>      Anyone
> really notice a difference between the stock and an upgrade or even a
> straight pipe?
-- 
Kervin
86 Scirocco 2.0 8v 4K+80%
88 Gti 1.8 16v needs some love
00 tt600