Diesel Performance Warehouse is running a Group buy on Industrial Injection Turbos and Turbo kits. Check it out! We have never sold a HTT stainless housing. BP told us they would make them for us. We decided to let HTT continue with out us doing the same. Instead we have been making the Phat Shaft 71 kit, Custom built Stainless Header designed Exhaust Manifolds, Mega Shaft turbos 80mm, Towing Twin Kits and Racing Twin Turbo Kits. The lastest designed Exaust Header Manifold is one that incorporates a external Wastegate 60mm and a large flange mount. This allows a Larger frame turbo like our Mega Shaft Turbo to run a smaller A/R turbine housing and yet control turbo rpm with the external wastgate. (Quick Spoolup and Controled Turbo RPM) More reliable turbo kits! They are all HPC coated for even better exhaust flow. I like the shiney silver HPC coating, as it makes these manifolds look like chrome or polished stainless. HPC has coatings all the way to 2200deg. F. I hope this clears up some things. Thanks, Brady