4" V-Band All 304 Flange Male Female Clamp Kit S200 S300 Turbo T4 Flanged. it's for building a 4" downpipe only. Stainless Steel Clamp,Stainless Steel Flange. Flange with clamp, easy for assembly. Only for T4 flanged 200 and 300 Series Turbos, S, SX, and SX-E with the beveled face.