This high quality Rugged Ridge header is extra tough for extreme usage. Flanges are welded 360 degrees to stand up against the hottest conditions. Our polished stainless design gives your engine that new, hot look. The complete bolt on kit includes manifold, gasket, and down pipe flange gasket. All Rugged Ridge headers come with a limited 5 year warranty. Compare the value of these extra high quality headers to any other high end header manufacturer. 97-98 models re-use the factory head pipe. This header will only fit 1991-1998. NOT LEGAL FOR SALE OR USE IN CALIFORNIA or other States adopting CARB standards. RACING OR NON-HIGHWAY USE ONLY.. This black steel exhaust header kit from Rugged Ridge fits 91-98 Jeep Cherokee, 93-98 Grand Cherokee, and 91-98 Wrangler with a 4.0L engine.