The exhaust manifold found in the 1964-2004 Chevy S10 / GMC Sonoma was 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 header 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 4Cylinder 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.
1 x Set of exhaust header
All necessary hardware, bolts, and gaskets
Chevy S10 Pickup 2.2L (1994-2004)
GMC Sonoma 2.2L (1994-2004)