Manufactured from stainless steel this manifold features huge 61mm pipes for maximum flow and increased horsepower. Designed to suit Mazda RX7 1993-1997 FD3S 13b turbo, and supplied with turbo gasket. These have a T4 footprint to suit T04R / T78 / T88 / TD-07 / TD-08 turbos. They come with a 4 Bolt HKS style external wastegate flange and will support up to 650HP.