W.4 Turbo Upgrade System

The Weistec BMW S63TU W.4 Turbo Upgrade System provides a complete, bolt-on replacement for your stock turbochargers, eliminating the need for core charges or modifications to your original units. This system is engineered for the BMW S63/S63tu engine, aiming to achieve significant power increases without requiring custom fabrication or permanent chassis modifications. The system offers a choice of Garrett Gen 2 GTX3071R, GTX3076R, GTX3576R, or GTX3582R turbos, allowing for a range of performance characteristics from optimized response to maximum top-end power. Key features include .75 A/R turbine housings, .70 A/R compressor covers, ball-bearing turbochargers, and high-flowing Weistec stainless steel turbine housings. It comes complete with Weistec turbo intake tubes, charge pipes with integrated methanol injection ports, and Weistec 304SS downpipes, as OEM-style downpipes are incompatible. All OEM heat shields are retained, and the factory wastegate actuators are compatible. Stainless braided oil and coolant lines with custom CNC-machined fittings are also included. This turbo upgrade system requires custom tuning to achieve its full potential. It is important to note that this product is not for sale or use in the state of California on any pollution-controlled vehicle, as per the California Air Resources Board. The Weistec W.4 Turbo Upgrade System is designed to fit various BMW models equipped with the S63 engine, including the F10 M5, F12/F13 M6, and F15/F95 X5 M. Specific fitment for your vehicle should always be confirmed using the vehicle selector.