Fab Pros V-band Flange and Clamp set for the Turbine Exit (Downpipe side) on all the T6 flanged S500 Series Turbos, S, SX, and SX-E with the FLAT face. ** Not for housings that have the big beveled face*** This is the V-band flange compatible with these BW (Borg Warner) Turbo models including: Fits: Borg Warner S500 S500SXE S500SX. This one DOES NOT FIT the S200, S300 or S400 series housings. Please refer to other listings. Exceptionally high quality 304 Stainless Flange machined from billet and matching USA MADE clamp. Machined from solid billet 304 stainless means it's extremely durable and corrosion resistant (no rust!). Has the special 5.15" FLAT FACE to mate too the only the Borg Warner outlet flange on all these Turbo models using the flat faced "T6" Housings, not Beveled Face. Has the nice 5" ID on the backside of the flange to slip the 5" OD tube into and weld. Has a beefy dead section for warp free welding Use this flange and clamp to make a nice true 5" diameter downpipe! It's ALL stainless! Another high quality part made for FABRICATION PROS.