The exhaust manifold found on the 2002-2006 Nissan Sentra SOHC 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 4-1 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 2.5L 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 From High Quality T304 Stainless Steel For Strength & Durability
Constructed With TIG Welded CNC Machine Flange For Percision & Fitment
4-1 Racing Design
Comes With O2 Sensor Bung Insertion & Metal Gasket
Inlet/ Outlet: 2"/ 2.5"
This product is compatible with:
Nissan Sentra SE-R SPEC V B15 2.5L DOHC (2002-05)