
12-29-2010, 12:29 AM
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Full Blown Member
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Join Date: Sep 2008
Cobra Make, Engine: KMP 427 S/C, Twin Paxton 511 FE
Posts: 2,594
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Not Ranked
I know this doesn't help you now but I used to.
I changed my SPF stock units from SP01701 to the upgrades from Voss Performance.
Big difference.
BIIIGGG difference! 
Look into it. When I handed my car over to Hillbank to sell, the salesman was equally impressed.
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rodneym
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