TSM Honda D-Series Turbo Manifolds are designed and manufactured in the USA and are made from high-quality stainless steel .
Our TSM Manifolds are TIG-Welded and back purged to ensure the highest quality product. TSM flanges are machined flat ensuring a perfect seal, are produced in-house from ½” plate 1018 steel and are CNC-machined unlike the cheap laser cut flanges on the market. Each stage of manufacturing is passed through quality control team to ensure the end user gets a top-notch product. The quality and performance sets the bar. Choose from a 38mm or 44mm wastegate flange.