Blackworks Racing Honda/Acura B-Series Turbo Manifolds are designed and manufactured in the USA. Made from High Quality Stainless Steel, these Top Mount Manifolds are Tig-Welded and back purged to ensure the highest quality product. BWR flanges are machined flat ensuring a perfect seal. Blackworks Flanges are produced in their own facility from half inch plate 1018 Steel, CNC machined unlike the cheap laser cut flanges on the market. Each stage of manufacturing is passed through our quality control team to ensure that the end user gets a top notch product. The quality and performance sets the bar.

Lifetime warranty.