The product is made from S304 stainless steel pipes & flanges. Lost wax made 2 in 1 collector with smooth inner surface heavily reduces easy cracking & minimises turbulence.
-Manifold: O/D - 45mm, thickness - 1.8 mm
-2 in 1 collector: O/D - 45mm, thickness - 2 mm
-Engine side thickness: 12mm
-Turbo side thickness: 12mm
*No fitting kit is supplied - we recommend using genuine gaskets and bolts with these headers.