Bolt-on upgraded hybrid turbochargers for BMW 550, 650, 750, X5, X6 with 4.4l N63TU twin-turbocharged V8 engine.

Power range: 800 hp

upgrade turbocharger for BMW N63B44T3 features:

plug and play installation
dual ceramic ball bearings;
reinforced bigger machined from the solid compressor wheels;
enlarged turbine wheels;
refurbished housings;
new shafts;
balanced on VSR;

Turbos are designed to work with stock exhaust manifold and other engine units. Just install, tune and go. Compatibility list written below, but if you a true BMW fan, you know where this engine is installed without these tips.