Stainless Downpipe Elbow 90° Holset Turbo HY35 HX HE351 W/ 4.375" V-band Flange Clamp USAV-Band clamp and stainless gasket are included with the downpipe elbow as shown -- everything in the first picture is included. Elbow has a threaded bung in it for an oxygen (O2) sensor. An excellent starting point for anyone installing one of these turbos and having a hard time finding the proper clamp and flange to build their downpipe.Easily attach your next section of the exhaust pipe to this with a 4" exhaust band clampThis is a stainless 3" downpipe elbow and clamp to fit the Holset turbos with the 4.375" O.D. V-band outlet/downpipe attachment point. The outer diameter of the V-Band flange is 4.375" 90° bend is kept as tight as possible to ensure clearance in the tightest of engine bays.