i have a 2015 turbonetics t3/t4 to4e 50 trim stage III exh. currently has .48 ar hosuing installed but also comes with .64 ar exh housing. both housings have been thermal coated. both are 4 bolts with v band flange adaptors bolted to them. turbo has normal wear but not bad at all. turbo comes with 4an fitting on oil feed side and 10an on return side. also come with a turbo sock. $550 is about half what that all costs new. i have a v band wg with a 14 psi spring if interested. also have a 3.5" od dp if interested. 402....641...4625 if interested. i can ship it. with electronic boost control controlling the 14 psi wg pictured, the best i could run was 29 psi.