Featuring a fully TIG-welded design with a cast endtank. The most reliable, durable, best fitting E9X M3 oil cooler on the market - no trimming of shroud required.
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#:
4730412
Mfg#:
17117547059EKT
In Stock
ON SALE!
$1115.99
This product was last offered at the strikethrough price on 06-16-2026
The upgrade N52/N54/N55 owners have been waiting for - get rid of that failure-prone water pump to thermostat hose
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
3659542
Mfg#:
020414ECS01KT
In Stock
ON SALE!
SAVE 25%
$113.99
This product was last offered at the strikethrough price on 06-13-2026
Track-tested and street-ready—the ULTIMATE cooling system upgrade for your N54 or N55!
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes! For vehicles with manual transmission only
Brand:
ES#:
4839753
Mfg#:
004443LA01
In Stock
ON SALE!
$604.99
This product was last offered at the strikethrough price on 06-13-2026
The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
4876028
Mfg#:
054921LA02
Ships on Feb 18, 2027
ON SALE!
SAVE 15%
$458.99
This product was last offered at the strikethrough price on 06-13-2026
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
Optimize your engine cooling system performance and heater output with quality drive belts, coolant hoses, cooling system parts, and approved coolant fluids from ECS Tuning. Head off expensive repairs and untimely breakdowns with regularly scheduled cooling system inspection and maintenance.