Description
WGM Uprated Stock Turbos for BMW M2 Competition F87, M3 F80, M4 F82 F83 Twin Turbo S55
A surcharge is required for the turbo cores which will be refunded once your stock cores are received and confirmed to be in serviceable condition. PLEASE SEE HERE
These are supplied without manifolds as standard, however we can supply with shot blasted manifolds as pictured.
If you would like these with shot blasted manifolds, please select YES to the manifold option. We require your stock manifolds back with the turbo cores if this option is chosen. We are unable to accept cracked / damaged manifolds back.
If you are happy to swap over the supercores to your stock manifolds, please select NO to the manifold blasting.
This is our OEM replacement upgraded turbocharger based on the Original turbocharger for the BMW S55Â inline-six-cylinder Twin-turbocharged engine.
 Engineered & Enhanced
One of the biggest issues with the S55 Mishibushi turbochargers is turbo failures, with stock turbos failing and bypassing oil from around 40-60k miles, the most important issue was to resolve and improve this weak link. Installing a stronger bearing pack, we use a twin-feed oversized thrust bearing which has been modified to allow a fixed thrust bearing.
These Stock UPGRADED replacement Turbos are designed to be a simple plug-and-play hybrid turbo, retaining completely stock Compressor and Turbine wheels, yet having upgraded internals for reliability
Equilibrium
Precisely balancing our turbochargers is a key critical factor to becoming a reliable upgrade unit as power is pointless without reliability. Firstly parts are balanced at slow speeds up to 2800RPM in multiple planes using our single parts machine, then components are assembled and then the CHRA are dynamically balanced, but this time depending on application at up to 250,000 RPM in multiple planes using our in house VSR machine to acquire the ultimate equilibrium, to a standard far higher than OEM. Each turbocharger is supplied with a serial-numbered balance test result document.
