The MSL thermostat ensures a cooler oil temperature which will result in more stable performance
The MSL thermostat ensures a cooler oil temperature which will result in more stable performance
Upgrade to a much more durable connection from your cylinder head to your thermostat! Commonly referred to as a "Mickey Mouse" flange/adapter.
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
06-13-2026
Keep oil temps low on or off the track!
2X Entries Into Our F80 M3 Sweepstakes
Replaces the stock plastic flange found in the thermostat to cylinder head coolant hose that is known to fail
Serious engine oil cooling for the most demanding engines
For custom applications only. Not a direct bolt on.
Reduces coolant temperatures by as much as 30*F
Upgrading cooling for your engine oil
For custom applications only. Not a direct bolt on.
Serious engine oil cooling for the most demanding engines
For custom applications only. Not a direct bolt on.
Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components!
2X Entries Into Our F80 M3 Sweepstakes
For vehicles with an Automatic Transmission only
Serious engine oil cooling for the most demanding engines
For custom applications only. Not a direct bolt on.
Serious engine oil cooling for the most demanding engines
For custom applications only. Not a direct bolt on.
Featuring an all-aluminum tank and core plus OE-style quick connects. Lower engine temperatures mean more power and longer life of engine components!
2X Entries Into Our F80 M3 Sweepstakes
For vehicles with a Manual Transmission only
The MSL thermostat ensures a cooler oil temperature which will result in more stable performance
Serious engine oil cooling for the most demanding engines
This product was last offered at the strikethrough price on
05-06-2026
Serious engine oil cooling for the most demanding engines
Pairs with all types of coolant to increase heat transfer and decrease engine temps.