The K&N 57-3067 is a 57 Series FIPK cold-air intake for the 6.0L V8 in 2007-2008 Silverado and Sierra 2500 HD and 3500 HD trucks. It uses a high-density polyethylene (HDPE) rotationally-molded tube with a washable oiled-cotton filter, and it is legal for use in all 50 states. The case for paying above stock is airflow: K&N's own dyno testing on a 2007 2500 HD showed gains of 11.44 horsepower at 4500 RPM, and the company guarantees a horsepower increase.
Shoppers searching for a 2008 Silverado 2500HD 6.0L cold air intake, a 57 series FIPK for a GMC Sierra 3500HD, or a bolt-on 6.0 HD intake with a reusable filter will find this kit fits that profile. The filter only requires cleaning every 100,000 miles under normal highway driving conditions, so you avoid repeat disposable-filter purchases over the life of the truck. The kit is backed by a K&N limited warranty, and the manufacturer's documentation describes the system as replacing the restrictive factory air filter and intake tube, so the stock airbox is not left as a restriction.
No. The manufacturer lists this kit for the 2007-2008 Silverado and Sierra 2500 HD and 3500 HD models with the 6.0L V8. Confirm your VIN and engine code with the manufacturer before ordering.
The manufacturer says the kit replaces the factory air filter and intake tube. Its install sheet also has you mount the new heat shield into the existing air box mounting grommet holes, so the airbox mounting points are reused.
Per the manufacturer, the washable, reusable filter only needs cleaning about every 100,000 miles under normal highway driving. Heavier dust or off-road use will shorten that interval.
This is a bolt-on job that uses the factory mounting points. The manufacturer's instruction sheet lists a ratchet, extension, 1/2-inch and 10mm sockets, 5/8-inch and 10mm wrenches, a flat-blade screwdriver, and 3mm and 4mm Allen wrenches. Expect to disconnect the mass air sensor and the crankcase vent hose, remove the stock tube, then mount the heat shield and reinstall the mass air sensor on the new tube. The manufacturer warns that skipping steps or not using the included hardware can damage the intake tube, throttle body, or engine. Install time estimates vary, so plan for a longer session on your first attempt.
