GT3071R Turbo assembly with internal wastegate (Not Kit). Garrett GT3071R turbo with ATP proprietary exhaust housing and internal wastegate all ready to bolt up to Mazdaspeed6 exhaust manifold. Includes all coolant and oil connections to connect turbo to factory lines. Turbo as assembled with the mazda specific 5 bolt outlet. Turbo is efficient up to 22 psi on the MS6 2.3L turbo engine and can produce 450 crank HP as configured with supporting mods and proper tuning. Does not include 3" inlet pipe and 3" downpipe necessary to complete a "kit" and is recommended for shop use only. The GT3071R is absolutely the best spooling turbo on the market capable of making 450HP. Highly recommended for a very broad powerband with a lot of "area under the curve".