BMW E9X E8X Low Pressure Bucketed Fuel Pump Expansion Modules (Stage 3-4) Pump Selection:Stage 3.5 Module (Requires PR Stage 2 pump) The JB4 also does not

The JB4 also does not require any user setup or customization but for more advanced enthusiasts the BMS DATA cable allows you to connect via a laptop for data logging and free software updates

Installation is very discrete and unlike flash remaps which are quick to install but can never be fully removed with a JB4 the vehicle is never aware it's making more than the factory boost or power levels

the ARM N63 Intake offers an optional Front Facing Upgrade

SPECIFICATIONS

BMW E9X E8X Low Pressure Bucketed Fuel Pump Expansion Modules (Stage 3-4) Pump Selection:Stage 3.5 Module (Requires PR Stage 2 pump) The JB4 also does notThe Precision Raceworks BMW E9x E8x Low Pressure Bucketed Fuel Pump Expansion Modules (Stage 3 4) are designed for customers looking to run all blends of E85. All pump options below include Genuine Walbro 450, Walbro 525, or Walbro 535 fuel pump(s) capable of flowing up to 350% more fuel than the factory fuel pump, and all options are 100% E85 compliant. These expansion modules require customers to already own a Stage 2 or 2. 5 Precision Raceworks