The aFe Momentum ST Cold Air Intake System is a high-performance intake upgrade designed for the Jeep XJ with a 4.0L engine from 1991 to 2001. Constructed with a durable aluminum housing finished in black, this system features a Pro 5R filter that maximizes airflow and filtration efficiency. The smooth, one-piece sealed housing incorporates an auxiliary air scoop to deliver the coldest possible intake charge, enhancing engine performance and throttle response. A urethane plug is included to fully seal the auxiliary scoop if desired, providing flexibility in tuning. This intake system is engineered to improve airflow dynamics, resulting in increased horsepower and torque while maintaining filtration integrity.
Designed specifically for 1991–2001 Jeep XJ models equipped with the 4.0L inline-six engine, this system offers a direct bolt-on upgrade that does not require modifications. It is suitable for street and off-road use, providing improved engine breathing and power gains across various driving conditions. The kit includes the aluminum intake tube, Pro 5R filter, sealed housing, auxiliary air scoop, and urethane plug, ensuring a complete installation. Ideal for enthusiasts seeking enhanced performance and filtration, this intake system is a reliable upgrade for daily driving, off-road adventures, or performance tuning.
