DO88 Front Charge Intercooler Radiator BMW F Series B58 Gen 1

Compatible only for vehicles with Gen 1 B58 engines!

Unlock reliable performance from your tuned or track-driven B58-powered BMW with do88’s upgraded Front Intercooler Water Cooler. Designed as a direct-fit replacement for the factory heat exchanger, this TIG-welded all-aluminium unit massively increases cooling capacity to combat heat soak — a known issue on B58 cars under prolonged load.

Just like the S55 in the F80 M3/M4, the B58 uses a water-to-air intercooler system — but with the intercooler integrated into the intake manifold. Unfortunately, this makes the system prone to heat soak, especially when tuned or driven hard. When intake temperatures rise, the ECU will reduce ignition timing or enter limp mode to protect the engine.

The do88 Front Intercooler Water Cooler dramatically increases the system’s ability to shed heat, allowing your B58 to maintain consistent performance during spirited road driving or track sessions.

Key Features

• 66% larger cell pack than OEM

• 48mm thick dual-row core for a 120% increase in active cooling area

• Triple-pass design ensures coolant passes through three times for maximum efficiency

• All-aluminium construction with TIG-welded end tanks for strength and durability

• Higher fluid volume for improved thermal stability

• Direct-fit installation with provisions for original transmission cooler