BMW M2 F87 Blow-Off & Diverter Valves

The BMW F87 M2 responds exceptionally well to targeted engine upgrades, and experienced tuners have developed a solid ecosystem of proven parts for this platform. For those running the S55 engine in the M2 Competition, upgraded intercoolers from Wagner Tuning or Mishimoto address the factory unit's tendency to heat soak under sustained track use, directly improving power consistency. Charge pipe kits from Burger Motorsports or Turner Motorsports eliminate the weak OEM plastic boost tubes that can crack under increased pressure. A quality intake like the Eventuri carbon system or the BMS intake significantly improves airflow and throttle response. Pairing these hardware modifications with a reputable ECU tune from MHD or Bootmod3 unlocks genuine power gains, with many S55-equipped cars pushing reliably into the 450-470whp range on a conservative 93-octane map. For the base M2 running the N55, the same tuning software applies, though gains are more modest without supporting modifications.

Before chasing power numbers, always address your cooling system first - replace the thermostat, inspect the water pump, and run a quality coolant flush. A strong thermal foundation protects your investment and ensures every tune performs as intended, lap after lap.