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
It's no secret that modern turbocharged BMW engines run hot. Whether you're turning laps at the track or sitting in summer traffic, high oil temperatures are the enemy of engine longevity and performance.
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Featuring an all-aluminum tank and core. Lower engine temperatures mean more power and longer life of engine components!
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Upgrade to a much more durable connection from your cylinder head to your thermostat! Commonly referred to as a "Mickey Mouse" flange/adapter.
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This product was last offered at the strikethrough price on
06-13-2026
Serious engine oil cooling for the most demanding engines
For custom applications only. Not a direct bolt on.
Keep oil temps low on or off the track!
2X Entries For Our 25th Anniversary Sweepstakes!
Replaces the stock plastic flange found in the thermostat to cylinder head coolant hose that is known to fail
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.
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 For Our 25th Anniversary Sweepstakes!
For vehicles with a Manual Transmission only
All of the Gaskets needed for Installation
This product was last offered at the strikethrough price on
06-15-2026
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 For Our 25th Anniversary 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.
The MSL thermostat ensures a cooler oil temperature which will result in more stable performance