Part #: 140212
The American Racing Headers Long System HD 6-into-1 Header is engineered specifically for the 1998–2006 Jeep Wrangler TJ equipped with the 4.0L inline-six engine. Designed for enthusiasts seeking to maximize power and torque, this heavy-duty header system offers a significant upgrade over factory exhaust manifolds. It is ideal for off-roaders and performance-minded drivers who demand durability and enhanced engine efficiency under the most demanding conditions.
Built to outperform and outlast competing headers, this system improves exhaust flow with a rotational firing sequence design that optimizes scavenging and reduces backpressure. Whether tackling rugged trails or upgrading your Jeep’s powertrain, this header delivers reliable performance gains and long-term durability.
This 6-into-1 header system incorporates advanced design elements and premium materials to ensure superior performance and longevity:
American Racing Headers utilizes premium 304 stainless steel, known for its excellent strength and corrosion resistance, ensuring this header system withstands the harsh environments typical of off-road use. The 3/8" thick laser-cut flanges maintain a perfect seal and prevent warping, a common issue with lesser headers. Each inlet is hand-ported and TIG welded to guarantee smooth transitions and optimal exhaust flow.
The 6-into-1 design features carefully engineered primary tube routing that matches the Jeep Wrangler TJ’s firing order, enhancing exhaust pulse scavenging for improved torque and horsepower. Merge collectors with scavenger spikes further optimize exhaust gas evacuation, contributing to better engine breathing and efficiency.
By replacing restrictive factory manifolds, this header system significantly improves exhaust flow, resulting in increased power and torque across the RPM range. The rotational firing sequence design smooths exhaust pulses, reducing turbulence and backpressure. This translates to a more responsive throttle and enhanced engine performance, especially noticeable during off-road driving or towing.
The system also delivers a deeper, more aggressive exhaust note that complements the Jeep’s rugged character without excessive drone, providing an engaging driving experience.
Designed as a direct fit for 1998–2006 Jeep Wrangler TJ models with the 4.0L inline-six engine, this header system installs using existing mounting points and hardware. The optimized tube routing ensures clearance with chassis components and factory accessories, minimizing the need for modifications. Professional installation is recommended to ensure proper sealing and alignment.
All American Racing Headers products are manufactured exclusively for racing purposes. Installation of this header system on any vehicle eliminates legal use on public roads and highways. Use may be subject to fines and/or criminal liability under the Clean Air Act. Please verify local regulations before purchasing or installing this product.
American Racing Headers (ARH) builds stainless steel headers and exhaust systems aimed at serious performance gains for modern muscle and high-output platforms. The company emphasizes USA-made craftsmanship and race-proven designs, making ARH a popular choice for enthusiasts chasing power, sound, and track-ready durability.
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140212 American Racing Headers 98-06 Jeep Wrangler Long System HD 6-into-1 Header. Crafted from USA-made 304 stainless steel, this heavy-duty header features a rotational firing sequence for enhanced power and torque. Designed to never crack, it withstands the toughest conditions while delivering superior fit and performance. Hand-ported TIG welded inlets, laser-cut flanges, and optimized tube routing ensure durability and efficiency. Ideal for racing applications, this system outperforms and outlasts competitors, making it a top choice for Jeep enthusiasts seeking maximum engine output.
MADE IN THE USA
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Part #: 140212
The American Racing Headers Long System HD 6-into-1 Header is engineered specifically for the 1998–2006 Jeep Wrangler TJ equipped with the 4.0L inline-six engine. Designed for enthusiasts seeking to maximize power and torque, this heavy-duty header system offers a significant upgrade over factory exhaust manifolds. It is ideal for off-roaders and performance-minded drivers who demand durability and enhanced engine efficiency under the most demanding conditions.
Built to outperform and outlast competing headers, this system improves exhaust flow with a rotational firing sequence design that optimizes scavenging and reduces backpressure. Whether tackling rugged trails or upgrading your Jeep’s powertrain, this header delivers reliable performance gains and long-term durability.
This 6-into-1 header system incorporates advanced design elements and premium materials to ensure superior performance and longevity:
American Racing Headers utilizes premium 304 stainless steel, known for its excellent strength and corrosion resistance, ensuring this header system withstands the harsh environments typical of off-road use. The 3/8" thick laser-cut flanges maintain a perfect seal and prevent warping, a common issue with lesser headers. Each inlet is hand-ported and TIG welded to guarantee smooth transitions and optimal exhaust flow.
The 6-into-1 design features carefully engineered primary tube routing that matches the Jeep Wrangler TJ’s firing order, enhancing exhaust pulse scavenging for improved torque and horsepower. Merge collectors with scavenger spikes further optimize exhaust gas evacuation, contributing to better engine breathing and efficiency.
By replacing restrictive factory manifolds, this header system significantly improves exhaust flow, resulting in increased power and torque across the RPM range. The rotational firing sequence design smooths exhaust pulses, reducing turbulence and backpressure. This translates to a more responsive throttle and enhanced engine performance, especially noticeable during off-road driving or towing.
The system also delivers a deeper, more aggressive exhaust note that complements the Jeep’s rugged character without excessive drone, providing an engaging driving experience.
Designed as a direct fit for 1998–2006 Jeep Wrangler TJ models with the 4.0L inline-six engine, this header system installs using existing mounting points and hardware. The optimized tube routing ensures clearance with chassis components and factory accessories, minimizing the need for modifications. Professional installation is recommended to ensure proper sealing and alignment.
All American Racing Headers products are manufactured exclusively for racing purposes. Installation of this header system on any vehicle eliminates legal use on public roads and highways. Use may be subject to fines and/or criminal liability under the Clean Air Act. Please verify local regulations before purchasing or installing this product.
American Racing Headers (ARH) builds stainless steel headers and exhaust systems aimed at serious performance gains for modern muscle and high-output platforms. The company emphasizes USA-made craftsmanship and race-proven designs, making ARH a popular choice for enthusiasts chasing power, sound, and track-ready durability.
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Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
