For S55-powered BMWs: F87 M2 Competition, F80 M3 (all variants), F82/F83 M4 (all variants). This Mosselman MSL thermostat opens at 85°C - not a blanking plate - giving faster warm-up and stable oil temps in the 95-105°C sweet spot.
Prevents dangerous 120°C+ spikes from the stock unit
Aluminium construction built for Stage 1 and Stage 2 use, fast-road or track-day duty
True plug-and-play: no coding, no machining, no leaks if installed correctly
Works with stock and upgraded cooling; proven on UK track days and spirited daily driving
