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#1 Re: did i make my car even slower??
Grimsin

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Feb 2011

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St Thomas Ontario

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06-15-2015

just got back from a drive and gps shows my speedometer is still accurate.

3.8l N/A POWA! :4'' HAI\L67 HVTB\HV3\ER Rockers\WP underdrive pulley\Headers\cat delete\91 octane overkill incar tune.3.69 gears, Trans go shift kit.
My Car:http://www.grandprixforums.net/threa...2005-Impala-LS

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