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
Ships in 1-3 days
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
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
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
Back Ordered
ON SALE!
SAVE 19%
$832.99
This product was last offered at the strikethrough price on 05-02-2026
Everything you need to totally service your cooling system, including a radiator and belt service. Now Includes ECS Billet Aluminum Radiator Drain Plug!
10X Entries Into Our F80 M3 Sweepstakes For vehicles with automatic or DCT transmission only
Brand:
ES#:
2739952
Mfg#:
11510392553RKT2
Back Ordered
ON SALE!
$1316.99
This product was last offered at the strikethrough price on 05-02-2026
Upper and lower radiator silicone coolant hose kit to upgrade from your stock rubber hoses. Includes stainless steel hose clamps. Made to re-use your factory connections.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
4690094
Mfg#:
008640LA01
In Stock
ON SALE!
SAVE 25%
$121.99
This product was last offered at the strikethrough price on 06-13-2026
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
