Upgrade your Jeep’s reliability and exhaust flow with this Stainless Steel Exhaust Manifold Header, designed for 1991–1999 4.0L engines found in Wrangler YJ/TJ and Cherokee XJ.
This high-quality header replaces the common crack-prone factory manifold and provides improved exhaust efficiency, durability, and smooth engine performance.
Constructed from thick-wall stainless steel with precision welding, this manifold offers improved resistance to heat cycling and vibration—ideal for off-road use, daily driving, and long-term durability.
High heat resistance, corrosion-resistant, and long-lasting.
Reduces cracking issues common on OEM 4.0L manifolds.
Supports smoother throttle response and better overall engine efficiency.
Compatible with factory hardware and gaskets.
Prevents stress fractures in high-heat zones.
1991 Jeep Wrangler YJ 4.0L
1992 Jeep Wrangler YJ 4.0L
1993 Jeep Wrangler YJ 4.0L
1994 Jeep Wrangler YJ 4.0L
1995 Jeep Wrangler YJ 4.0L
1997 Jeep Wrangler TJ 4.0L
1998 Jeep Wrangler TJ 4.0L
1999 Jeep Wrangler TJ 4.0L
(No Wrangler in 1996)
1991 Jeep Cherokee XJ 4.0L
1992 Jeep Cherokee XJ 4.0L
1993 Jeep Cherokee XJ 4.0L
1994 Jeep Cherokee XJ 4.0L
1995 Jeep Cherokee XJ 4.0L
1996 Jeep Cherokee XJ 4.0L
1997 Jeep Cherokee XJ 4.0L
1998 Jeep Cherokee XJ 4.0L
1999 Jeep Cherokee XJ 4.0L
Engine: 4.0L Inline 6 (I6) only
1 × Stainless Steel Exhaust Manifold Header
Hardware (if applicable)
Direct replacement
Professional installation recommended