2014-2020 M2C / M3 / M4 S55 Twin Turbo Upgrade | MHI
THE BMW M3 / M4 S55 BOLT-ON TWIN TURBO UPGRADE BRINGS OEM RELIABILITY AND MORE HORSEPOWER
FR spoke with and listened to BMW tuners, racers, and owners. It turned out what they wanted was OEM reliability, a simple install and a lot more top-end HP (with zero core charges). Manufactured using 100% OEM components from the original manufacturer (MHI) and proven in DTM endurance racing, these are some of the finest bolt-on turbo upgrades available.
THE BMW S55 TWIN TURBO BOLT-ON UPGRADE KIT FOR M3, M4, AND M2 COMPETITION
These BMW S55 twin turbos are purpose-built, stock-appearing, and stock-location performance upgrade. A true plug-and-play bolt-on from the OEM manufacturer. Nobody can visually tell these are not OEM without measuring upon disassembly. Utilizing a larger Mar-M turbine wheel with a billet compressor wheel, this turbo is designed for reliable top-end gains.
Manufactured with validated components from MHI (the OEM supplier to BMW) these are proven during 24H DTM endurance races. Each turbo is hand-built and high speed balanced for maximum reliability and durability. Wastegate actuators are pre-calibrated for easy installation. Stock tunes can be utilized with all stock components. For maximum gains, a custom tune is recommended.
Full Race BMW M3 / M4 S55 Turbo Upgrade (Tuned conservatively at DI limit) = 670 Wheel HP / 640 Wheel Tq!
S55 TWIN TURBO UPGRADE FEATURES:
• Performance-optimized Billet compressor wheel with latest generation blade aero
• A direct bolt-on replacement; all connections to the vehicle utilize OE inlet and outlet to retain factory intake plumbing and exhaust routing.
• Manufactured with 100% brand-new OEM components—not remanufactured and no core charge
• Ready to install out of the box, with pre-set electronic wastegate
• Step-Gap oil seal on Turbine side
• Multipad Thrust Bearing Assembly
• Watercooled Center Section
MHI 56MM S55 UPGRADE: 74LB/MIN COMBINED MAX FLOW RATE
COMPRESSOR WHEEL SIZE: OEM: 51mm / MHI: 56mm
TURBINE WHEEL SIZE: OEM: 43mm / MHI: 47mm
Notice for California Residents: This product does not have a CARB EO #; it is not legal for sale or use in CA on pollution-controlled motor vehicles. This is intended as a "Race Only" product to be used solely for competition. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization; any other use including recreational off-road use may be a violation of local, state, and federal laws. It is the buyer's responsibility to verify the legal use of this product for the intended application and use.
