APDTY 785970 Exhaust Manifold w/Gaskets & Heat Shield Fits V6 4.2L On 2008-2009 Chevy Trailblazer or GMC Envoy 2008 Isuzu Ascender 2008-2009 Saab 9-7x (Replaces GM 12597166, 12637060, 8-12597-166-0) Includes Both Gaskets Includes Heat Shield Includes Downspout Hardware Everything Needed For A Complete Repair