DO88 S58 Intercooler Radiator G8X M2 M3 M4

DO88 S58 Intercooler Radiator G8X M2 M3 M4Upgrade your G8X M cars charge air cooling system with the do88 Front Intercooler Radiator a high performance, all aluminium replacement designed to eliminate heat soak and improve reliability under track and spirited road use. Heat Soak is the S58s Weak Point The BMW S58 engine relies on a water to air charge cooling system, with a front mounted water radiator feeding coolant to the intercooler integrated in the inlet manifold. On tuned or hard

Upgrade your G8X M-car’s charge air cooling system with the do88 Front Intercooler Radiator – a high-performance, all-aluminium replacement designed to eliminate heat soak and improve reliability under track and spirited road use.

Heat Soak is the S58’s Weak Point

The BMW S58 engine relies on a water-to-air charge cooling system, with a front-mounted water radiator feeding coolant to the intercooler integrated in the inlet manifold. On tuned or hard-driven G8X models, the system is prone to heat soak, resulting in higher intake temps, reduced power, or even limp mode activation.

A True Motorsport Cooling Upgrade

do88’s solution replaces the factory unit with a 2-row, 48mm thick all-aluminium core featuring a Quad-pass flow design — meaning the coolant flows through the radiator four times instead of two. The result? Maximum cooling contact and reliable performance when it matters most.

• 39% larger core volume than OEM

• Quad-pass coolant flow for improved cooling efficiency

• 2-row core with 48mm thickness for high thermal capacity

• 9% increase in active cooling surface area

• Full aluminium construction with TIG-welded end tanks

• CNC-machined hose fittings and ports

• Taller 5mm fin height vs. 4.4mm OEM for better airflow to the main engine radiator

• Adds 1.4 litres of coolant capacity for greater thermal mass

• Includes custom-fit rock guard protection

• Compatible with both manual and automatic G8X M-cars