Push your S55-powered BMW M2 Competition, M3 or M4 towards up to 600 hp with this complete bolt-on tuning bundle from Nforcd. Centred around the proven JB4 piggyback, this package adds the supporting hardware your F8x needs for strong, repeatable performance, while keeping installation plug-and-play and fully reversible. Power potential will vary with fuel quality and conditions.
- Up to 600 hp potential with JB4 tuning on the S55 engine, fuel and setup dependent
- Plug-and-play fitment with no permanent modifications and works with a locked ECU
- Wireless map switching, live data and logging via the JB4PRO Bluetooth adapter and app
- Improved airflow from high-flow intakes plus upgraded charge pipes and J-pipes
- Lower intake temperatures with a high capacity intercooler for more consistent performance
- Includes NGK 97506 two-step-colder spark plugs with gapping tool and feeler gauge to set 0.022 inch
What’s included
- JB4 S55 Performance Tuner
- JB4PRO Bluetooth Adapter and app access
- BMS S55 Performance Intake
- BMS S55 Charge Pipes and J-Pipes
- Phoenix Racing High Capacity Intercooler for F8x S55
- NGK 97506 two-step-colder spark plugs - set of 6
- BMS billet spark plug gapping tool
- Magnetic spark plug socket
- Spark plug feeler gauge
Vehicle fitment
- BMW M2 Competition F87 2018 to 2022 S55 only
- BMW M3 F80 2015 to 2020
- BMW M4 F82 F83 2015 to 2020 including M4 GTS
Dyno testing
Independent testing on a stock BMW M4 equipped with this S55 package has shown gains of over 100 hp and 120 lb ft at the wheels. Results will vary based on fuel, hardware condition and environmental factors.
Nforcd knows this setup well and it has proven popular with our BMW M customers looking for a fast, reliable route to serious performance. Order your S55 600 hp package today, or contact us for advice on suitable supporting mods and fuel. Professional fitting is available at Nforcd in Warwickshire. To request a fitting quote, email Sales@nforcd.com.