Fits to any TiAL BOV such as Q, QR, 50mm Stainless steel flange for TiAL Blow Off Valves Genuine TiAL flange made of stainless steel Fits to any TiAL BOV such as Q, QR, 50mm The flange is welded to a stainless steel or mild steel charge air pipe. The BOV is fitted to the flange with a V-band clamp and a sealing ring. This flange is a spare part, each TiAL BOV includes one flange. Material: Stainless steel 1.4301 / V2A / SS304 Fits: - TiAL 50mm - TiAL Q - TiAL Alpha Q - TiAL QR