Brand New Exhaust Manifold Complete Kit Includes Both Gaskets & Downspout Hardware The original manifold on these vehicles has a tendency to crack. This new aftermarket manifold has extra material added to offer more support and a much longer lifespan. Replace your cracked exhaust manifold for the last time with this premium upgraded design. Match Vehicle To Compatibility Chart To Ensure Exact Fitment w/4.2L Engine Only Compatible With 2002-2005 GMC Envoy Compatible With 2002-2005 Chevrolet Trailblazer Compatible With 2004-2005 Buick Rainier Compatible With 2003-2005 Isuzu Ascender Compatible With 2002-2004 Oldsmobile Bravada Replaces OEM 88890560 (Exhaust Manifold Kit With Gasket & Hardware Compatible With V6 4.2L Engine On 2002-2005 GMC Envoy / 2002-2005 Trailblazer / 2004-2005 Buick Rainier / 2003-2005 Isuzu Ascender / 2002-2004 Bravada)