Facing forward turbo mild steel tubular headers with 2 1/2" V-band flanges. These headers fit with most aftermarket tubular K-members. These headers are designed to build your own custom turbo race kit. Headers are build to order. NOTE: Your oil cooler and filter will need to be relocated and A/C deleted. The 1 3/4" primaries headers come with 2 1/2" V-band flanges.