Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by lilbutler2, Aug 14, 2009.

  1. lilbutler2

    lilbutler2 New Member

    I have a 2005 Silverado 2500HD 6.0L it has a magna charger supercharger with a 3.00 pulley, intake, exhaust, headers, aem methanol injection... Does anybody know what else I could do to get more horsepowe?? I dont want to tear apart the motor yet tho..

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