These flanges are thick 304 Stainless Steel and precision CNC machined for 2" Schedule 40 piping. Stepped lip is port matched to the ID and provides a lip for the piping and ease of welding.
A quality manifold starts with the header flange. This is a step up from the water jet or laser cut flanges you see on the market that are just cut from sheet metal. The 2" primaries are a must for higher horsepower builds.
Each set includes (2) header flanges made to bolt directly to the A90 2020 Toyota Supra.