aFe POWER Twisted Steel long tube header and connection pipe combo for the 2000-2006 Jeep Wrangler (TJ/LJ) with L6-4.0L engine. Designed to replace the extremely restrictive exhaust manifold, the performance Twisted Steel long-tube header is constructed of 1-2-1/2 IN, 14 gauge, mandrel-bent, stainless steel tubing for strength and durability. The smooth curves and increased diameter of this header helps remove restriction and keeps exhaust gas flowing smoothly for improved performance and durability on and off the trails. In testing, this system resulted in gains up to +2 HP and +7 lbs. x ft. of TQ, as measured on our in-house dyno. The header comes with a 2-1/2 IN thick laser-cut head flange that is designed to match the head port for a leak-free seal. Formed collectors are used on the header to decrease turbulence and increase exhaust velocity for maximum performance. The high-flowing Connection Pipe is designed using 2-1/2 IN mandrel-bent tubing for optimum flow resulting in added horsepower and torque. This system is designed to fit as a combo with all necessary hardware for a hassle-free installation.
Stainless Steel Construction:
This system is constructed of durable mandrel bent stainless steel tubing for maximum performance, corrosion resistance and strength, eliminating cracking.
Factory Mounting Locations:
Utilizes factory mounting locations making it a true bolt-on system and includes all necessary hardware for a hassle-free installation.
Utilize formed collectors to decrease turbulence and increases exhaust velocity. The result is increased horsepower, torque and improved throttle response.
Optimized Tube Lengths:
Tube lengths are optimized for true pulse control technology which improves flow and performance.
2-1/2 IN Laser-Cut Flanges:
These headers come with 2-1/2 IN thick laser-cut head flanges and gaskets that are designed to match the head port for a leak-free seal.
Connection Pipe (Race)
The performance Connection Pipe is constructed of durable 2-1/2 IN mandrel bent, stainless steel and connect directly to the OE or aFe exhaust.
This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. To complete the purchase of this item, aFe POWER competition acknowledgement/liability release form must be filled out and submitted.
All aFe exhaust systems are engineered and manufactured in our Corona, California facility.