looking to increase horsepower and torque on my 04 2500hd. Any recommendations on a catback system, what are your thoughts on a throttle body spacer. currently have flowmaster muffler and k&n filter

Asked by Mar 23, 2011 at 01:08 AM about the 2004 Chevrolet Silverado 2500HD 4 Dr LS 4WD Crew Cab SB HD

Question type: Car Customization

charger kit.  towing 2300fs weekend warrior for recreation use

1 Answer

Go to Banks Power. I put a Banks Power Pak on my 2005 Avalanche and intend to do the same to my 2500HD. HP & torque gains.

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