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 ARM N63 Intake offers

the ARM N63 Intake offers an optional Front Facing Upgrade

Included with the kit is everything you need to secure your downpipes to your midpipe

with no guesswork on engagement and sealing of the O-ring

this high pressure fuel pump is fully compatible with E85 and other fuels

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 ARM N63 Intake offersThe 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