Spool - Stage 3 Low Pressure Fuel Pump DIY Kit || G20/G22/G32/G11/G12 B58

Spool Performance B58 Stage 3 DIY Low-Pressure Fuel Pump Kit

Affordable high-performance fueling for your B58 build.

Spool Performance is proud to introduce our B58 Stage 3 DIY Low-Pressure Fuel Pump Kit—a budget-friendly and effective solution for enthusiasts looking to solve low-side fueling limitations without the high cost of plug-and-play systems. Designed for the DIY community, this kit provides comparable fuel flow to our Stage 3 PNP system at a significantly lower price point.

Whether you're chasing big power on E85 or maxing out your upgraded turbos, this DIY kit will ensure your B58 never runs dry.

🔧 Kit Contents:

• 1x Genuine Deatschwerks DW300 Fuel Pump (Modified with 2-way quick-connect fitting)

• 1x Billet Aluminum Pump Holder

• 1x Filter-Side Corrugated Nylon Hose

• 1x Pump-Side Corrugated Nylon Hose

• 2x Crimp Clamps

• 2x Screw-On Clamps

• 1x Activation Harness

• 1x Boost-Activated Switch

• 1x Boost Reference Adapter

• 1x Complete Hardware Pack

• Step-by-Step Assembly Instructions

✅ Why Choose the DIY Stage 3 Kit?

• Nearly Double the OEM Fuel Flow – Ideal for 700–900+whp setups

• Boost-Activated Secondary Pump – On-demand fueling only under load

• DIY Friendly – Save hundreds vs. plug-and-play solutions

• Compatible with E85 and Pump Gas

• Clean, Reliable, and Cost-Effective

📦 Vehicle Fitment (B58 Platform):

• 5 Series (G30/G31): 10/2015 – 12/2019

• 6 Series GT (G32): 09/2016 – 12/2019

• 8 Series (G14/G15/G16): 06/2018 – 12/2019

• 3 Series (G20/G21): 10/2017 – 12/2019

• 7 Series (G11/G12 + LCI): 10/2014 – 12/2019

🔧 Installation Note:

This is a DIY kit intended for customers comfortable with light mechanical work. While no special tools are required, professional installation is recommended if you're unfamiliar with in-tank fuel pump work.

💥 Don’t let your fueling system hold you back. Upgrade your B58’s low-side fueling with the Spool Stage 3 DIY Kit and push your build to its full potential—safely and affordably.