Stainless steel impeller and 20% increase in flow!
When it comes to cooling, Stewart is the final word in high performance pumps. The ultimate in BMW cooling with a limited lifetime warranty!
Brand:
ES#:
2581452
Mfg#:
888010330
In Stock
$219.99
This product was last offered at the strikethrough price on 06-15-2026
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#:
4876067
Mfg#:
008682LA02
In Stock
ON SALE!
SAVE 20%
$434.99
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 E46 M3!
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Retains OEM fitment with superior looks and durability!
10X Entries Into Our F80 M3 Sweepstakes Includes new connectors - don't reuse brittle, high mileage plastic connectors!
Brand:
ES#:
2748020
Mfg#:
003631ECS01
In Stock
ON SALE!
SAVE 25%
$198.99
This product was last offered at the strikethrough price on 06-13-2026
Kit includes upper and lower radiator hoses without connections. Silicone hose upgrade and connectors kit ES4315269.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
4142065
Mfg#:
006205LA01
In Stock
ON SALE!
SAVE 25%
$160.99
This product was last offered at the strikethrough price on 06-13-2026
Upgrade from your all-in-one plastic thermostat assembly to a stout and reliable billet mechanical thermostat setup!
10X Entries Into Our F80 M3 Sweepstakes
Upgrade your BMW's cooling to extend track days and keep your engine healthy
10X Entries Into Our F80 M3 Sweepstakes For vehicles with a Manual Transmission and production date up to 09/2002
Brand:
ES#:
5507087
Mfg#:
E46NMPCKT
Ships in 3 Business Days
ON SALE!
$1432.99
This product was last offered at the strikethrough price on 09-01-2026
Looking to mitigate high temperatures under hard driving or from serious engine upgrades? Our performance cooling system upgrades like radiators, silicone hoses, upgraded water pumps, low-temperature thermostats, electric fan conversions, and more are just what you need to keep those temps down for longer.
Lifetime Replacement
