This is the NEWEST bolt on sports turbo turbocharger from Garrett, called GT2871R. Many have heard of the "Disco Potato" awhile back, well this one is a step beyond the DP turbo where the turbine section remains the same as DP but the main different lies in the much more efficient 71mm compressor wheel. Typical HP output should range 340+rwhp (400bhp) between 14-18psi with superb powerband, retains dual center ball bearing cartridge, and much more install friendly than the GT25R. The turbo itself comes with adjustable wastegate actuator good for 17-20psi of boost. Bolts on to stock manifold, turbo elbow and downpipe. The only thing needed is fabbing your own intake pipe to the turbo. Specs: Turbine Wheel: 53.85mm w/ 76 trim Turbine Housing: .86 ar Compressor Wheel: 71mm w/ 56 Compressor Housing: .60 ar