These S55 upgrade turbos are the only available to offer a turbo utilizing purpose built S55 compressor and turbine wheel profiles.They are simply the only proven powerful and reliable turbo upgrade
available for your M2 Competition, M3 or M4
Our new STG2+ upgrade turbos are here to push the envelope even further.
Almost 130whp gain PS2+ vs. PS2
Turbos are on a core exchange basis and take 3-4 Weeks to complete