do88 BigPack BMW S55 M2C/M3/M4 (F87/F80/F82/F83)

Rather than piecing together individual components, the BigPack brings together do88's entire charge air cooling system for the S55 in purpose-matched configurations, all with genuine drop-in fitment. The S55 twin-turbo engine uses a top-mounted, water-cooled intercooler with a tube-and-fin core and clamped plastic end tanks, a construction genuinely prone to cracking, leaking coolant into the engine, or leaking boost pressure out through the tank seals. The coolant circuit itself runs through two parallel-connected radiators and a pump, the larger positioned in front of the centre cooling module, the smaller in front of the right-side wheel arch.

Each BigPack configuration bundles a selection of do88's proven components for this platform: the performance intercooler, turbo-to-intercooler pipes, the intercooler-to-throttle body J-pipe, and (where applicable) the front-mounted and side-mounted system radiators. Buying as a package means genuinely coordinated fitment across every connection point in the system, rather than mixing and matching individually. Depending on the exact configuration chosen, expect 9-14°C lower intake air temperatures, 16-17% higher airflow, a documented 13hp peak power gain (measured with a BootMod3 Stage 1 tune), with midrange gains as high as 25hp and 52Nm.

Important: the BigPack configuration that includes the radiator does not fit the F87 M2 Competition, that variant is for M3/M4 only. M2 Competition owners should select a BigPack configuration without the radiator included.

Why Choose This BigPack

• Complete, coordinated charge cooling system in one purchase, not individually mixed components
• 9-14°C lower intake air temperatures depending on configuration
• 16-17% higher airflow than the factory system
• Documented 13hp peak gain, up to 25hp/52Nm midrange gain with a Stage 1 tune
• Eliminates the OE intercooler's genuine crack and leak-prone weak points throughout the system
• Multiple configuration options to match your exact budget and goals

Compatibility

• BMW F87 M2 Competition (S55) — radiator-included configurations do not fit this model
• BMW F80 M3/M3 Competition (S55)
• BMW F82/F83 M4/M4 Competition/GTS/CS (S55)