The exhaust manifold found in the 1990-1995 4 Cylinder Toyota 4Runner and Pickup were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 4-1 off-road racing headers are designed to allow the exhaust gasses to flow more freely from each cylinder and combine in a more efficient manner. Tubing has been optimized for the 2.4L engine. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound.
90-95 Toyota 4Runner / Pickup (Fits 2WD Models with 2.4L Engine ONLY)
Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability i.e. Maximizing Smoothest High Exhaust Air Flow Rate
High Performance Long Tube Racing Spec. Design, Produces the Most Top End Power
Offers the Best Flow Characteristics for the Engine at High Engine Speeds
Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq.
Inlet/Outlet: 1.5"/2.25" / 10mm Thick Header Flange / 16 Gauge Wall Piping