This is the exhaust/turbine housing only. Large 1.06 A/R, T4 (T04) undivided inlet (exhaust manifold side) with 3.00" interlocking "LIP" V-Band exit.(downpipe side) Fits Garrett GT3071R, GT30R, GT3076R, GT3082R, GT3040R. Direct bolt on & replaces/upgrades your existing housing.