Mitsubishi Evolution 4-9 4G63 Engine w/ 50mm Portsize Stainless Steel Header Flange Length_1.775" - 1.800" - 5/16-18" Mounting Hole for

- 5/16-18" Mounting Hole for Throttle Bracket (x1)

The Aeroflow Performance tube straightener is designed for use with brake line

Extended Tip:  103mm

(Warranty VOID if not used)

Mitsubishi Evolution 4-9 4G63 Engine w/ 50mm Portsize Stainless Steel Header Flange Length_1.775" - 1.800" - 5/16-18" Mounting Hole forCustom build your exhaust or turbo manifold with high quality Aeroflow components. Aeroflow CNC header flanges are manufactured from 9. 5mm (3 8") thick stainless steel. They are precision cut to meet your ports, reduce warping, and prevent leaks. The Aeroflow header flanges are offered in a variety of header flange sizes and shapes to make your cylinder heads and headers manifolds meet your exhaust building needs.