Ditch the weak, factory plastic coolant expansion tank and free up space on the hot side of your engine bay!
10X Entries Into Our F80 M3 Sweepstakes Compatible with factory/aftermarket cold side intakes as well as hot side intakes!
Brand:
ES#:
3647095
Mfg#:
021942TMS13
In Stock
ON SALE!
SAVE 15%
$815.99
This product was last offered at the strikethrough price on 05-02-2026
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
Brand:
ES#:
3552811
Mfg#:
024797ECS01
In Stock
ON SALE!
SAVE 25%
$76.99
This product was last offered at the strikethrough price on 06-13-2026
Reduce oil temperatures with an upgraded billet housing and low-temp thermostat! Allows you to add an oil cooler to your vehicle that didn't have the factory option.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
4809843
Mfg#:
008731LA01KT
In Stock
ON SALE!
SAVE 25%
$343.99
This product was last offered at the strikethrough price on 06-13-2026
Features A CSF High Performance Radiator and must have upgraded silicone cooling lines needed for a confidence inspiring cooling enhancement.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
4730412
Mfg#:
17117547059EKT
In Stock
ON SALE!
$1115.99
This product was last offered at the strikethrough price on 06-16-2026
Retains OEM fitment with superior looks and durability. Pre-assembled with factory connectors for easy installation!
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
5335373
Mfg#:
018739LA02
In Stock
ON SALE!
SAVE 20%
$189.99
This product was last offered at the strikethrough price on 06-13-2026
Ultra-efficient dual-core, triple-pass radiator from the leader in E9X M3 cooling. Cooler engine temps mean more power and longer life of engine components.
2X Entries Into Our F80 M3 Sweepstakes
Dual pass transmission cooling with 30% efficiency improvement versus the OEM cooler. True plug-and-play! No modifications - just better performance!
2X Entries Into Our F80 M3 Sweepstakes
Easily upgrade your N52 with our bolt-in 400W N54 water pump conversion that doubles overall flow and improves cooling system efficiency.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
5425471
Mfg#:
044952LA04KT
In Stock
ON SALE!
SAVE 25%
$477.99
This product was last offered at the strikethrough price on 06-13-2026
Easily upgrade your N52 with our bolt-in 400W N54 water pump conversion that doubles overall flow and improves cooling system efficiency.
10X Entries Into Our F80 M3 Sweepstakes
Features A CSF High Performance Radiator and must have upgraded silicone cooling lines needed for a confidence inspiring cooling enhancement.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
4730418
Mfg#:
17117558480EKT
In Stock
ON SALE!
$1048.99
This product was last offered at the strikethrough price on 05-02-2026
A more advanced refresh kit - with primary cooling system hoses and accessory belt
10X Entries Into Our F80 M3 Sweepstakes For vehicles with automatic or DCT transmission only
Brand:
ES#:
2597716
Mfg#:
11510392553RKT
In Stock
ON SALE!
SAVE 20%
$832.99
This product was last offered at the strikethrough price on 05-02-2026
Upgrade your cooling system with a bigger, more efficient, radiator, electric fan conversion, water pump, lower-temperature thermostat, and cooling system additives to combat the enemy of performance.
Lifetime Replacement
