Fits: 2003–2007 Isuzu Ascender 2003–2009 Hummer H2 2008–2010 Hummer H3 2009–2010 Hummer H3T 2002–2005 Cadillac Escalade 2004–2007 Cadillac CTS 1998–2002, 2010–2015 Chevrolet Camaro 1997–2013 Chevrolet Corvette 2000–2014 Chevrolet Tahoe 2003–2009 Chevrolet Trailblazer 2004 Chevrolet Silverado 1500 2003–2006 Chevrolet SSR 2006–2009 Chevrolet Impala 2007–2012 Chevrolet Avalanche 2009–2012 Chevrolet Colorado 2011–2017 Chevrolet Caprice 2014–2017 Chevrolet SS 2003–2009 GMC Envoy 2000–2014 GMC Yukon 2009–2012 GMC Canyon 1998–2002 Pontiac Firebird 2004–2006 Pontiac GTO 2008–2009 Pontiac G8 2001–2004 Avanti II 2004–2007 Buick Rainier 2008–2009 Buick LaCrosse 2005–2009 Saab 9-7x Cometic GasketC5489-056Head GasketsThe Cometic MLS gasket is comprised of three to five layers of stainless steel. Cometic uses stainless steel for increased strength, its ability to rebound and resist corrosion. The outer layers of the gasket are embossed and coated on both sides with a Viton rubber material designed to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes. The Viton coating is heat resistant to 250°C or 482°F.Cometic MLS head gaskets are constructed from multiple layers of stainless steel for strength and contain load-controlled embossments that conform load distribution across the sealing area. This creates an exceptional seal by requiring less clamp load—resulting in less bore distortion. The stainless steel outer layers utilize FKM (Viton®) rubber coating, a high-temperature and chemical-resistant polymer. A topcoat of PTFE aids in resistance to fret and increased cold sealing. MLS head gaskets are available for most aftermarket cylinder heads; as with all of Cometic's MLS head gaskets, no sealants or re-torque is required.