Give your car that deep, throaty note that only stainless steel headers give. Proflows AISI 304 stainless steel headers are manufactured from a higher percentage of chromium and nickel elements than the standard minimum composition, making them harder and more resistant to corrosion. All headers are welded in a jig to ensure no warping occurs and each flange is laser cut from 10 mm plate for high accuracy. Available for most popular V8 models and come with gaskets and bolts. 304 stainless steel headers Full length Feature 1-7/8" primary tubes, 3.0" collectors Use with original motor mounts to fit properly Built with surface machined thick stainless steel flanges for a great seal Mandrel bent Includes header gaskets and bolts, collector flanges and bolts, flange gaskets, and engine mounts Note: Aftermarket engine mounts required.