Throttle Body Spacer Kit For Chevy Silverado 1500 4.8L 5.3L 6.0L 6.2L 2007-2012. Fitment: This part is compatible with: 2007-2012 Cadillac Escalade 6.2L 2007-2012 Cadillac Escalade ESV 6.2L 2007-2012 Cadillac Escalade EXT 6.2L 2007-2012 Chevrolet Avalanche 5.3L 2007-2012 Chevrolet Avalanche 6.0L 2007-2013 Chevrolet Silverado 1500 4.8L 2007-2013 Chevrolet Silverado 1500 5.3L 2007-2013 Chevrolet Silverado 1500 6.0L 2007-2013 Chevrolet Silverado 1500 6.2L 2007-2014 Chevrolet Suburban 1500 5.3L 2007-2014 Chevrolet Suburban 1500 6.0L 2007-2015 Chevrolet Tahoe 4.8L 2007-2015 Chevrolet Tahoe 5.3L 2007-2015 Chevrolet Tahoe 6.0L 2007-2012 GMC Yukon 4.8L 2007-2012 GMC Yukon 5.3L 2007-2012 GMC Yukon 6.0L 2007-2012 GMC Sierra 1500 4.8L 2007-2012 GMC Sierra 1500 5.3L 2007-2012 GMC Sierra 1500 6.0L. Unique Eddy Design creates air turbulence in the intake manifold. This turbulence increases the air pressure in the combustion chamber resulting in increased horsepower, torque and improved throttle response. Extend The Intake Manifold can help your engine to draw in more cold air resulting in better throttle response and higher explosive horsepower output Using the integration of original silicon seal,strong sealing property,anti-high temperature,anti-corrosion. Salt Spray Test (NSS 72 Hours) and High Temperature Test (NSS 180 Hours) for Application Bolts Our Throttle Body Spacers are precision machined from Aircraft Grade 6061-T6 billet aluminum for lightweight, high strength and perfect fit and finish. The bolts Machined from 304 Stainless steel for High strength and corrosion resistance.