BMW M2/M3/M4 Stage 4 Fuel System Upgrade for the S55 Motor | R 69119 – Check Prices Buy Online

Product Title: BMW M2/M3/M4 Stage 4 Fuel System Upgrade for the S55 Motor

Description:
This fuel system upgrade is designed for the S55 engine to support increased power or E85 usage. The package includes a port injection kit and LPFP upgrade to enhance fueling capacity for running up to 100% E85 on stock or upgraded turbos. The port injection kit provides additional fueling capacity without permanent modifications. The Stage 4 LPFP upgrade doubles the factory capacity for E85 compatibility, essential for over 600whp. The kit includes flow-matched Bosch injectors, Fuel-It! custom pieces, dual pumps, fuel lines, regulator, and optional accessories like ethanol sensor and Bluetooth analyzer. The upgrade is compatible with BMW M2, M3, and M4 models. Installation guides and optional accessories are available. Note that these kits are for off-road use only. Allow 5-7 business days for shipping. Ethanol sensors measure absence of gasoline, not ethanol content, and may be affected by fuel contamination.