4-2-1 Race Header Civic Si RSX Part # AHS6515B for the 2002 - 2005 Civic Si and the 2002 - 2006 Acura RSX (base model)

4-2-1 Race Header Civic Si RSX

4-2-1 Brushed Stainless Steel Race Header Part # AHS6515B for 2002-2005 Honda Civic Si & 2002-2006 Acura RSX Base Model Improve engine performance with the 4-2-1 Race Header Civic Si RSX, designed to deliver better exhaust flow, increased horsepower, and stronger mid-range torque. Built for enthusiasts and performance drivers, this brushed stainless steel race header is a direct fit for the 2002-2005 Honda Civic Si and 2002-2006 Acura RSX Base Model. The advanced 4-2-1 header design helps reduce exhaust backpressure while improving scavenging efficiency, resulting in smoother power delivery and enhanced throttle response. Constructed from high-quality brushed stainless steel, this header provides long-lasting durability, corrosion resistance, and a clean motorsport-inspired finish. Perfect for street builds, track cars, or engine upgrades, the 4-2-1 Race Header Civic Si RSX is an excellent replacement for restrictive factory exhaust manifolds. Key Features:

Fits 2002-2005 Honda Civic Si Fits 2002-2006 Acura RSX Base Model Performance 4-2-1 race header design Improves horsepower and torque output Better throttle response and exhaust efficiency Brushed stainless steel construction Corrosion resistant and durable finish Ideal for street and racing applications

Part Number: AHS6515B

Why Choose This Header?

The 4-2-1 Race Header Civic Si RSX is a smart upgrade for drivers seeking improved engine breathing, stronger acceleration, and reliable long-term performance.