Mitsubishi Evolution 4-9 4G63 Engine w/ 50mm Portsize Stainless Steel Header Flange Length_1.775" - 1.800" Aeroflow 4 into 1 merge

Aeroflow 4 into 1 merge collectors are made out of T304 stainless steel that is durable enough to stand up to the elements and combine high flow and high velocity to increase and broaden an engines torque curve

reduce warping

Extended Tip:  103mm

Recommended engine displacement:  3

A hand tool for precisely bending pipe

Mitsubishi Evolution 4-9 4G63 Engine w/ 50mm Portsize Stainless Steel Header Flange Length_1.775" - 1.800" Aeroflow 4 into 1 mergeCustom 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.