The exhaust manifold found on the 1993-1996 Honda Prelude DOHC 4 Cylinder Engine were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 4-2-1 Tri-Y 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 2.2L 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.
Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability 4-2-1 High Performance Racing Spec. Design / TIG Welded CNC Machine Flange Flex Pipe Insertion for Flexibility and Extra Durability / O2 Sensor Bung Insertion and Metal Gasket Included Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq. / 2" Inlet / 2" Outlet Fits 93-96 Honda Prelude H22 (Professional Installer is Highly Recommended, No Instruction Included)