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The Original 3/8" Ruffstuff Diff Cover!*VOTE NOW Help Metalcloak Giveaway an XJ Suspension*Steering and more from Ruffstuff!

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Unread 08-25-2013, 05:06 PM   #1
maurd12
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Join Date: Jul 2013
Location: Villa Rica, Ga.
Posts: 3
Gibson mufflers

They claim to allow your engines to produce 10 to 15 more horsepower. Is this true or just a sales pitch?

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