The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind.
10X Entries For Our 25th Anniversary Sweepstakes!
A high performance heat exchanger like this will keep the engine at a more consistent temperature and drop intake temps dramatically.
2X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3987599
Mfg#:
8131
In Stock
7% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$749.00
This product was last offered at the strikethrough price on 07-23-2026
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.
10X Entries For Our 25th Anniversary Sweepstakes!
Featuring an all-aluminum tank and core. Lower engine temperatures mean more power and longer life of engine components!
2X Entries For Our 25th Anniversary Sweepstakes!
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 For Our 25th Anniversary 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
Keep your BMW's B58 engine cool with CSF's performance aluminum radiator!
2X Entries For Our 25th Anniversary Sweepstakes! For vehicles with the M Sport Package (P337A and/or P7B3A)
Retains OEM fitment with superior looks and durability. Includes stainless steel hose clamps and pre-installed factory style connectors.
10X Entries For Our 25th Anniversary Sweepstakes!
A high performance heat exchanger like this will keep the engine at a more consistent temperature and drop intake temps dramatically.
2X Entries For Our 25th Anniversary Sweepstakes!
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
