The 3.0 Liter S55B30 turbo engine for BMW M3/M4 models is equipped with an indirect charge-air cooling circuit. So the cooling of the charged air is not realized by the ambient air as a cooling medium (as usual), but made with its cooling water circuit. A reduction in the temperature of the cooling water is directly equated with an improved cooling performance of the charged air. This is precisely where the advantages of the WAGNERTUNING upgrade water cooler come into play.

The newly developed competition racing cores of the WAGNERTUNING high-performance water coolers increase the radiator volume of the OEM water coolers by 89% for front mounted and 94% for side mounted. The calculated ratio between the inner and outer cooling surface generates a maximum heat transfer.

At the same time, it allows enough airflow for the surrounding components (for example, the engine water cooler) for its own heat exchange. The water coolers have a heat-conductive anti-corrosion coating to ensure a lasting cooling effect. The plug & play installation of the system is simple and easy to perform (an installation instruction is included as well).

Dimensions OEM side-mounted radiator:
250 mm x 165 mm x 40 mm / 9,8Inch x 6,5Inch x 1,6Inch
V = 1,65 Liter
A = 412,5 cm² / 63,7Inch²

VS.

Dimensions WT side-mounted radiator:
252 mm x 188 mm x 68 mm / 9,9Inch x 7,4Inch x 2,7Inch
V = 3,2 Liter (+94%)
A = 473,8 cm² / 73,3Inch² (+14,9%)

The kit comes with the following:

(1) Side-mounted radiator (low-temperature circuit)
(1) Carbon air shroud for side-mounted radiator
(1) Mounting material
(1) Installation instruction