Weistec BMW S63 W.4 Turbo Upgrade System for M5 and M6 - F10 F12 F13 F90
Transform your BMW M5 or M6 with the Weistec W.4 Turbo Upgrade System for the S63 and S63TU engine. This is a complete, bolt-on twin turbo kit designed for serious performance gains, flawless fitment and OEM-level reliability. No core charge, no exchange, no downtime. Simply remove the stock turbochargers and install the Weistec W.4 units with the included hardware. Factory engine cover remains in place for a clean, OEM look.
This BMW S63 turbo upgrade is engineered for high horsepower builds with excellent response when paired with the right Garrett Gen II turbo option. All supporting hardware is included, from high-flow stainless steel turbine housings and 304SS downpipes to new inlet and charge pipes with integrated methanol injection ports. If you are searching for the best BMW M5 turbo upgrade or BMW M6 turbo upgrade in the UK, this Weistec W.4 S63 turbo kit delivers the power, quality and fitment enthusiasts demand.
Why choose the Weistec W.4 S63 Turbo Kit
- Complete bolt-on replacement for stock turbochargers
- No core charge and no exchange required
- Genuine Garrett Gen II ball bearing turbos for fast spool and big top-end power
- Weistec 304SS downpipes included and designed to fit these turbos
- New Weistec turbo inlet pipes to factory airboxes or bolt-on aftermarket intakes
- New Weistec charge pipes with integrated methanol injection ports to the factory intercoolers
- Stainless braided oil and coolant lines with CNC machined, anodised fittings
- Retains factory wastegate actuators and OEM heat shields
- OEM-like fit and finish without cutting or welding
- Factory engine cover retained
Turbo options to match your build
Choose the Garrett Gen II turbo that suits your power goals and driving style:
- GTX3071R Gen II
- GTX3076R Gen II
- GTX3576R Gen II
- GTX3582R Gen II
Turbine housing A/R 0.75 and compressor cover A/R 0.70 provide an ideal balance of response and flow. From rapid spool for the road to monster top-end for track builds, there is a W.4 configuration for every S63 owner.
Upgrades and tuning
Optional Weistec Water/Methanol Injection System and Weistec Anti Surge Valves are available to complement the W.4 turbos. Custom tuning is required to realise the full potential of this S63 turbo upgrade package.
Performance
- Weistec Horsepower: up to 1000 HP (+453 HP)
- Weistec Torque: up to 900 TQ (+398 TQ)
What is included
- Choice of Garrett Gen II GTX3071R, GTX3076R, GTX3576R or GTX3582R turbos
- High flowing Weistec stainless steel turbine housings
- Weistec turbo inlet tubes and charge pipes with methanol ports
- Weistec 304SS downpipes specifically for the W.4 turbos
- Stainless braided oil and coolant lines
- CNC machined, anodised coolant and oil fittings
- All required hardware for a bolt-in installation
Note: OEM style downpipes are incompatible with this system. The included Weistec downpipes ensure correct fitment to the rest of the exhaust without cutting or welding.
Compatibility - BMW S63 and S63TU
- BMW F10 M5 Saloon S63 2010-2016
- BMW F90 M5 Saloon S63 2016+
- BMW F06 M6 Gran Coupe S63 2011+
- BMW F12 M6 Convertible S63 2011+
- BMW F13 M6 Coupe S63 2011+
Fitting and support
Professional fitting recommended. Nforcd offers full supply and installation in Warwickshire. Request a tailored quote at Sales@nforcd.com. We have fitted this kit for UK customers and the feedback on performance, drivability and build quality has been excellent.
Special order
This turbocharger system is made to order. Please allow for lead times. Custom tuning is required.
Part number
01-563-01810-5
Manufactured by
Weistec
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