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Video - The K&N 57-3066 performance air intake system was designed for the 2007-2010 Chevy Silverado and GMC Sierra 2500/3500 HD with a 6.6L diesel engine The K&N 57-3066 performance air intake system was designed for the 2007-2010 Chevy Silverado and GMC Sierra 2500/3500 HD with a 6.6L diesel engine. This intake system created an estimated gain of 19.7 horsepower and 37.5 lb. ft. of torque at 2,900 RPM when tested on the K&N dynamometer. See how easy it is to add more performance to your Chevy Silverado or GMC Sierra 2500/3500 with this K&N air intake system.

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