DIY Stage 2 Fuel Pump Kit 135i 335i N54 N55

Fitment for: 135i 335i N54 N55

$299.99

Product Description


The FPM-1 DIY E85 Pump Kit is the perfect solution for those 135i 335i N54 and N55 owners who are maxing out their factory low pressure fuel pump (LPFP) when running E85 fuel mixes. This fuel pump modification has been shown to effectively supply ethanol mixes higher then the High Pressure Fuel Pump (HPFP) can adequately utilize.  Appropriate logging should be used to verify system performance and to ensure the the LPFP and HPFP are operating within acceptable ranges.  Based on our Testing, this configuration is capable of E60-E70 blends given a  healthy HPFP. Your results may vary.

The kit comes pre-assembled and ready to be installed in your factory OEM fuel pump bucket.  All required hardware is Included in the kit. Please feel free to watch our instructional installation video series on our YouTube channel linked below.  Typical installation time ranges from 1 hour to 2.5 hours depending on your technical skill level.  These time frames are based on Beta Tester installation times submitted.

Boost Concepts YouTube Channel

Product Features and Benefits


  •   Completely Plug-n-Play Factory Connections

  •   100% Ethanol and Gasoline compatible materials for constant submersible use

  •   Genuine Walbro F90000267/74 450lph E85 Compatible Fuel Pump 

  •   Full Instructional installation Videos for easy follow along installation

  •   Affordable Fuel Ring Removal Tool

  •   DIY Kits Minimize downtime and the hassle of core refunds

  •   100% Pre-During-Post installation tech support available