304 Stainless Steel Exhaust Header

The Flashark exhaust header (SKU: FLES08225) is a performance-oriented component designed as a direct bolt-on upgrade for the 1994-2004 Chevrolet S10 and GMC Sonoma equipped with the 2.2L I4 engine. Crafted from durable, polished 304 stainless steel, this header features CNC-machined flanges for a precise fit and includes standard graphite manifold gaskets to ensure a reliable, leak-free seal. Compared to restrictive factory cast-iron manifolds, this header utilizes mandrel-bent tubing with a 1.50-inch inlet and a 2.50-inch outlet. This design promotes more efficient exhaust gas expulsion, aiming to reduce backpressure, enhance engine efficiency, and potentially increase horsepower and torque. The installation is designed to be straightforward for moderately experienced DIYers, without requiring cutting or welding for the standard 1994-2004 setup. This header includes the necessary upstream O2 sensor bung, allowing the factory ECU to adjust automatically to the improved exhaust flow. While custom ECU tuning is not strictly required, it may help maximize performance gains when paired with other modifications like a cold air intake and a full aftermarket exhaust system. It is important to note that this header is specifically designed for the GM 2.2L OHV (LN2) engine and is not compatible with newer 2.2L Ecotec engines due to different cylinder head exhaust port spacing. It is also exclusively for the factory 2.2L I4 engine and does not fit V8 swaps (BBC, SBC, or LS). The product is designated for off-road or track use only and may not pass smog checks in states with strict emissions regulations like California.