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jeep accessories and performance partsPerformance Exhaust

Since 1963, Crown Automotive has been providing outstanding quality replacement parts for Jeep® vehicles. That same quality and experience can now be found in our new line of accessories, as well as heavy-duty & performance components, called RT Off-Road.

Performance Exhaust

Header Kit (Stainless Steel)

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Replaces Part #: RT36001
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Fits:
  • Jeep Wrangler (YJ) (1991-1995) with 4.0L engine.
  • Jeep Wrangler (TJ) (1997-1999) with 4.0L engine.
  • Jeep Cherokee (XJ) (1991-1999) with 4.0L engine.
  • Jeep Comanche (MJ) (1991-1992) with 4.0L engine.
  • Jeep Grand Cherokee (ZJ) (1993-1998) with 4.0L engine.

 

Kit includes stainless header, gasket, exhaust seal and studs.

Improve exhaust flow with RT Off-Road's Stainless Steel Header Kit for 4.0L Jeep vehicles. This manifold starts with a pair of 1/2″ thick zinc-coated flanges that will provide a perfect seal to the cylinder head and downpipe. The primaries are manufactured of 1-1/2″ diameter polished, mandrel-bent 304 stainless steel tubing. They meet at a 6-to-1 polished 304 stainless steel collector which improves exhaust flow through the entire operating range of the engine. The primaries are fully welded to the flanges and collector, resulting in an extremely strong and leak-free header.

The outlet of the collector is made of polished, mandrel-bent 304 stainless steel; this time with a 2-1/2″ diameter, which will mate to the stock downpipe with no issues. These features result in increased horsepower, torque, throttle response, and fuel mileage along with years of worry-free operation. Installation is straight forward with no cutting, grinding, or welding needed.

Heavy Duty Header (Stainless Steel)

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Replaces Part #: RT36002
Price: (Log in to see price)
Fits:
  • Jeep Wrangler (YJ) (1991-1995) w/ 4.0L engine.
  • Jeep Wrangler (TJ) (1997-1999) w/ 4.0L engine.
  • Jeep Cherokee (XJ) (1991-1999) w/ 4.0L engine.
  • Jeep Comanche (MJ) (1991-1992) w/ 4.0L engine.
  • Jeep Grand Cherokee (ZJ) (1993-1998) w/ 4.0L engine.
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  • Heavy Duty Version of 4883385; Produced with Superior Stainless Steel, Welding and Exhaust Flow.
Exhaust Spacer Kit

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Replaces Part #: RT36003
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Fits:
  • Jeep Wrangler (JK) (2014-2017) w/ 3.0L gas engine.
  • Jeep Wrangler (JK) (2012-2017) w/ 3.6L engine.
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  • Includes 2 Spacers and 4 Bolts; Spacers Feature a Ball Flange for a Simple and Leak-Free Installation; Designed to Move the Front Exhaust Pipe Down and Back In Order to Avoid Contact Between the Exhaust and Front Driveshaft.
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  • Essential for JK's with 2.5″ Lift or More; Bolt-In Installation.