do88 Side-Mounted Intercooler Radiator — BMW F8X M3/M4

The second radiator in the S55's water-to-air intercooler cooling circuit, mounted in front of the right-side wheel arch.

⚠ Fitment — Not Listed for M2 Competition

Unlike do88's other F8X products in this range, this radiator is listed by do88 for the M3 and M4 only — not the M2 Competition. Contact us to confirm fitment before ordering if you have an M2C.

Works as a Pair

Pairs with the do88 Front Intercooler Radiator. do88's tested temperature figures reflect both installed together.

Specification

• 100% larger core volume than OEM — 3,393 cm³ vs 1,693 cm³
• 18% larger frontal surface area — 499 cm² vs 423 cm²
• 5°C lower post-intercooler air temperature in do88's testing, measured with the front radiator also installed
• 68mm thick dual-row core with multi-channel tubes, OEM-style single-pass flow
• Includes a custom carbon fiber air duct manufactured from prepreg material in an autoclave process
• Drop-in installation with OEM cooling lines