Complete Intake & Exhaust Performance Package: The Gale Banks Engineering PowerPack System combines high-flow intake and exhaust components to maximize the performance potential of your 4.0L engine.
Improved Airflow Efficiency: Engineered to reduce intake and exhaust restrictions, this system allows for smoother airflow, improving combustion efficiency and overall engine output.
Mandrel-Bent Exhaust Design: Features precision mandrel-bent tubing that maintains consistent diameter throughout the exhaust system, increasing exhaust velocity and optimizing performance.
Proven Horsepower & Torque Gains: Dyno-tested by Banks Engineering to deliver measurable increases in horsepower, torque, and throttle response for enhanced driving performance.
Vehicle-Specific Engineering: Designed specifically for 1998–1999 Jeep Wrangler TJ models equipped with the 4.0L engine, ensuring a precise fit and straightforward installation process.
Durable, High-Quality Construction: Built with premium materials to withstand heat, corrosion, and rugged driving conditions for long-lasting reliability.



















