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Stock 2005 M6 GTO: APS TT 7 PSI

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08-20-2007, 07:49 AM

#21

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TECH Junkie

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yea you gotta love the stealth of the turbo cars. Mine is really quiet too even without cats and magnaflow catback. When I open the 3" cutout it still is quiter than before when I had my heads and cam setup.

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