This spacer was designed to give you an increase in fuel mileage, torque and throttle response but with ease of installation and a great price. Most others cause unwanted turbulence and create an annoying whistle. Includes hardware and gaskets.
1999-2006 Chevy/GMC 1500, 2500, 3500 trucks, SUVs, Tahoe, Suburban, Yukon, Escalade, Hummer H2 and Motorhomes with 4.8,5.3, 6.0 and 8.1 engines with multi-port fuel injection.