Complete Intake & Exhaust Performance System: The Gale Banks Engineering PowerPack System delivers a comprehensive upgrade by combining high-flow intake and exhaust components to maximize the performance of your 4.0L engine.
Improved Airflow Efficiency: Designed to reduce intake and exhaust restriction, this system allows for smoother airflow through the engine, improving combustion efficiency and overall power output.
Mandrel-Bent Exhaust Construction: Features precision mandrel-bent tubing that maintains consistent diameter throughout, increasing exhaust velocity and optimizing engine performance.
Proven Power Gains: Dyno-tested by Banks Engineering to provide measurable increases in horsepower and torque, along with enhanced throttle response and acceleration.
Vehicle-Specific Engineering: Designed specifically for 2004–2006 Jeep Wrangler TJ models equipped with the 4.0L engine, ensuring precise fitment and straightforward installation.
Durable Premium Materials: Built from high-quality components to withstand heat, corrosion, and harsh off-road conditions while delivering long-term reliability.



















