CSF BMW M2C M3 M4 S55 F8X heat exchanger

At the BMW S55 Indirect intercooling is used in the engine. With indirect charge air cooling, the charge air is cooled by a low-temperature coolant circuit. The low-temperature coolant circuit is then cooled again by the driving air via two air/coolant heat exchangers. A reduced cooling water temperature improved directly the cooling capacity of the intercooler.

The CSF heat exchanger is installed as an upgrade to the original main heat exchanger and is the largest "drop-in-fit" heat exchanger available on the market for the S55 engine.

The CSF heat exchanger has a massive 2-row 42 mm double core with 2x 45 rows as well as CSF's more exclusive B-Tube Technology . The B-Tube technology alone enables an increase in Cooling efficiency by over 15% versus the traditional O-tube design of the Original Equipment heat exchanger. As an OEM supplier with state-of-the-art production machinery, CSF is able to build an extremely efficient fin height of just 6.5mm for maximum surface contact. The dual-pass flow structure allows the coolant to pass through the core of the cooler twice before exiting the cooler for the lowest possible exit temperature. The frontal cooling surface increases by ~ 27% compared to the original heat exchanger.

Equipped with CNC machined "Quick-Connect" inlet/outlet connections as well as CNC machined brackets and fittings, the CSF Heat Exchanger is a direct replacement for the Original Equipment radiator. It can be connected directly and easily to all original hoses, no grilles, covers or anything else have to be trimmed or changed - so a 1:1 replacement. Also ideal to use as a replacement for accident vehicles or vehicles with defects. (Please note that to fit the larger, 50 row race heat exchanger various modifications of the plastic parts are necessary.)

In addition, the CSF heat exchanger is equipped with a practical drain plug, which the original system does not have! Also included is a stone guard. This ensures the greatest possible security against stone chips in the radiator core. With a thermodynamically optimized anti-corrosion coating, CSF ensures maximum quality and durability - this is underlined by the lifetime product guarantee.

The cooler is available as "polished chrome" or in a plain black.

Suitable for:

• F87 (2016+) > M2 Competition S55 (2019+)
• F80 (2015+) > M3 (2015+) incl. CS and Competition
• F82 / F83 (2015+) > M4 (2015+) incl. CS, Competition & GTS