Flowtech Headers are the perfect combination of quality and value. This shorty header fits the popular 2000-06 Jeep Wrangler TJ 4WD 4.0L L6 and bolts up to the factory exhaust. Features: High flow, mandrel-bent tubes provide consistent tubing diameters for smooth flow and increased exhaust velocity Heavy duty tubing and high quality welds for increased strength and durability Smooth transition, 1-5/8 diameter primary tubes are used for increased exhaust flow increasing performance, improving throttle response and broadening the torque curve Machined 1/2 header flanges welded inside and out for a leak-free seal and maximum strength Premium aluminum header gasket included
