K&N Cold air kit 2004 Chevrolet 2500 HD
Reviewed By Michael R (Haysville, KS) Reviewed for a
—5/14/2011 11:47 PM
Auto Anything folks are the best. GREAT deals and many options to suit your needs. I would rate them at an A+ for customer service and fast shipping also. As far as K&N go I am disappointed with appearance and installation. The boot or sleeve that tie the intake tube into the throttle body was about a 1/4 inch to big and took a lot of trial and error as well as time to line up properly and im still constantly checking to make sure it doesn't come loose. The weather stripping for the heat shield had to be trimmed and the heat shield does not fit to the hood to isolate the air filter from the engine heat. I believe my throttle response has improved some. I gained almost 1 mpg on the first tank. No major tire spinning HP gains though. Haven't had a chance to pull yet.