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Old 02-02-2012, 09:56 AM   #22
Russell James


 
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Drives: '15 SS 1LE, '69 Z28 drag car
Join Date: Dec 2009
Location: Mich
Posts: 4,482
I'd be impressed if a tuner did a performance package supported/R&D'd with/by GM. Warranted by GM, by any Chevrolet dealer...

Aftermarket packages with no factory support.... pass.
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