The Bisi Style 4-1 Header is a high-performance exhaust manifold designed specifically for Honda V2 engines. It is compatible with various Honda B Series engines, including the popular B16, B17, B18, and B20. This exhaust manifold is expertly crafted to optimize the engine's performance by improving exhaust flow. The 4-1 design merges the four exhaust pipes into a single collector, allowing for a smoother and more efficient flow of exhaust gases. This design helps to reduce backpressure and increase horsepower and torque output. The Bisi Style 4-1 Header is constructed from high-quality materials to ensure durability and longevity. It is made to withstand the high temperatures and harsh conditions typically found in high-performance applications. The manifold is precision-welded and features thick flanges for a secure and leak-free fit. Installation of this exhaust manifold is relatively straightforward, as it is designed to be a direct bolt-on replacement for the stock manifold. It…
