Crown Automotive RT36001 Stainless Steel Header Kit for 91-99 Jeep Wrangler YJ & TJ; 91-99 Cherokee XJ & Comanche MJ and 93-98 Grand Cherokee ZJ with 4.0L Engine
Performance Header Kit Upgrade: Replaces the restrictive factory exhaust manifold with a high-flow stainless steel header designed to improve exhaust efficiency and engine performance.
Legendary 4.0L Jeep Fitment: Engineered for 1991–1999 Jeep Wrangler YJ and TJ, Cherokee XJ, Comanche MJ, and 1993–1998 Grand Cherokee ZJ models equipped with the 4.0L inline-six engine.
Stainless Steel Construction: Built for excellent corrosion resistance, strength, and long-term durability in demanding driving conditions.
Improved Exhaust Flow: Tubular header design helps reduce backpressure and improve exhaust scavenging for better throttle response and performance potential.
Complete Kit Design: Includes the components needed for a cleaner, more complete header installation.
CARB Notice
- Legal in California, or other states adopting California emissions standards, only for racing vehicles that may never be used, registered or licensed for use, upon a highway. Can not be shipped to California residents.
Upgrade your Jeep's exhaust system with the Crown Automotive Stainless Steel Header Kit. Designed for 1991–1999 Jeep Wrangler YJ and TJ, Cherokee XJ, Comanche MJ, and 1993–1998 Grand Cherokee ZJ models equipped with the 4.0L engine, this performance header kit replaces the factory exhaust manifold with a high-flow tubular design engineered to improve exhaust efficiency and engine breathing.
Constructed from durable stainless steel, the header offers excellent resistance to corrosion, heat, and long-term wear. Its tuned tube layout helps reduce exhaust restriction and improve scavenging, supporting stronger throttle response, smoother power delivery, and dependable performance. Whether replacing a cracked factory manifold or upgrading for better exhaust flow, the Crown Automotive Stainless Steel Header Kit delivers the fit, durability, and value Jeep owners expect.
- Features: Stainless Steel
- Color: Silver
- Motor: 6cyl 4.0L
- Material: 304 Stainless Steel
- Shipping Weight: 18lb
- Shipping Dimensions: 31in x 19in x 5in (L x W x H)
Jeep Cherokee (XJ)
- 1999 Jeep Cherokee (XJ)
- 1998 Jeep Cherokee (XJ)
- 1997 Jeep Cherokee (XJ)
- 1996 Jeep Cherokee (XJ)
- 1995 Jeep Cherokee (XJ)
- 1994 Jeep Cherokee (XJ)
- 1993 Jeep Cherokee (XJ)
- 1992 Jeep Cherokee (XJ)
- 1991 Jeep Cherokee (XJ)
Jeep Comanche (MJ)
- 1992 Jeep Comanche (MJ)
- 1991 Jeep Comanche (MJ)
Jeep Grand Cherokee (ZJ)
- 1998 Jeep Grand Cherokee (ZJ)
- 1997 Jeep Grand Cherokee (ZJ)
- 1996 Jeep Grand Cherokee (ZJ)
- 1995 Jeep Grand Cherokee (ZJ)
- 1994 Jeep Grand Cherokee (ZJ)
- 1993 Jeep Grand Cherokee (ZJ)
Jeep Wrangler (TJ)
- 1999 Jeep Wrangler (TJ)
- 1998 Jeep Wrangler (TJ)
- 1997 Jeep Wrangler (TJ)
Jeep Wrangler (YJ)
- 1995 Jeep Wrangler (YJ)
- 1994 Jeep Wrangler (YJ)
- 1993 Jeep Wrangler (YJ)
- 1992 Jeep Wrangler (YJ)
- 1991 Jeep Wrangler (YJ)
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Crown Automotive Stainless Steel Header Kit Reviews
High quality header and gasket kit. Seems to be a clone of the Banks Revolver style header at a lower price. The build quality seems sturdy and the welds are far superior to stock OEM, however are only exterior welds. There is a tube that sticks out further than the others, providing the scavenging torque tube effect supposedly, but I didn't notice much of a power increase.
Important note regarding fitment! You almost certainly will have to shave a bit off of the intake manifold to fit it in with the new header on the engine block. Exhaust flanges 1 and 6 are a hair's width too thick for the intake manifold to clear smoothly. Take a dremel or a file and shave down the manufacturing seam on the intake manifold where it passes exhaust flanges 1 and 6 and it will fit snugly. Before bolting everything down be sure to check that the shaved intake manifold is sitting flush against the block with gasket, or you will have a vacuum leak that can cause your RPMs to be very high on initial start up.
Was not a perfect fit. Had to shave off a little bit on the 1 and 6 flange for the intake manifold to fit. Otherwise it looks great!
Was not a perfect fit. Had to shave off a little bit on the 6 flange for the intake manifold to fit. Otherwise it looks great!