Stainless Steel Manifold & Gasket Kit for Jeep Comanche (1991-1992) 4.0L EngineStainless Steel Exhaust Manifold & Gasket Kit for 1991 1992 Jeep Comanche 4. 0L The Jeep Comanche MJ represents one of the rarest and most collectible compact trucks ever builtcombining Cherokee capability with versatile pickup utility in a package that's become increasingly coveted by enthusiasts. Your Comanche's legendary 4. 0L inline six delivers bulletproof reliability and serious torque, but the factory cast iron exhaust manifold is notorious for