Killer B Motorsport 4-1 Holy Header 2-Bolt SwainTech Coated - 02-14 WRX / 04-20 STI

If you want some of the best components available when modifying your vehicle, then you will be satisfied with a great product from Killer B Motorsports. This introduction is for the 321 Stainless 2-Bolt Header that will be Swain Coated for extra protection against heat and corrosion. This is a great option because the header is designed around the oil pan, and it will help reduce your oil temperatures for improved performance.  Killer B Motorsport manufactured these exhaust manifold using the latest technologies which include state of the art CAD software and simulations to help determine optimal design to develop as much power as possible out of a header design. This means that you will get more horsepower and torque throughout the entire RPM range. Additionally, this header has been designed with short as possible primaries with a single secondary which helps significantly decreases header volume allowing exhaust gas pressures to build quickly.  The symmetrical 4-1 design maintains