![Spool Stage 3 Low Pressure Fuel Pump - DIY Kit [FXX Gen 1 B58], photo 1 of 4](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/diy_kit.jpg?v=1793145467&width=3840)
Spool Stage 3 Low Pressure Fuel Pump - DIY Kit [FXX Gen 1 B58]
Ships free in the US
Make sure this fits your car
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
- Shop tested in Dallas
- Free pickup in Dallas
- Installs at our shop
Spool Performance is excited to introduce our B58 DIY Stage 3 Kit, designed for enthusiasts seeking a cost-effective solution to fueling challenges. This DIY kit offers similar flow rates as our plug-and-play option but at a significantly lower price point. It includes everything you need to add a secondary boost-activated low-pressure pump, resolving any low-side fueling capacity issues. With straightforward assembly instructions provided, this kit is simple to install.
Kit Includes:
- 1x Genuine Walbro 450 Fuel Pump (modified with two-way quick connect fitting)
- 1x Billet Aluminum Pump Holder
- 1x Filter Side Quick Connect Nylon Hose
- 1x Pump Side Quick Connect
- 1x Spare Nylon Hose
- 2x Crimp Clamps
- 2x Screw-On Clamps
- 1x Hardware Pack
- 1x Activation Harness (Select Harness Option)
If Hobbs Switch Harness option selected:
- 1x Boost-Activated Switch
- 1x Boost Reference Adapter
Vehicle Fitment:
- F30 LCI: 340i, 340i xDrive
- F31 LCI: 340i, 340i xDrive
- F34 GT LCI: 340i, 340i xDrive
- F32: 440i, 440i xDrive
- F32 LCI: 440i, 440i xDrive
- F33: 440i, 440i xDrive
- F33 LCI: 440i, 440i xDrive
- F36 Gran Coupé: 440i, 440i xDrive
-
F36 Gran Coupé LCI: 440i, 440i xDrive
Listed for these cars. Check the title and description for exact years, body styles and drivetrain.
| Make | Model | Chassis | Years | Fits |
|---|---|---|---|---|
| BMW | M340i | G20/G21 | 2019+ | |
| BMW | M440i | G22/G23/G26 | 2021+ | |
| BMW | M240i | G42 | 2022+ | |
| BMW | M240i / M235i | F22/F23 | 2014–2021 | |
| BMW | 340i / 335i / 330i | F30/F31 | 2012–2019 | |
| BMW | 440i / 435i | F32/F33/F36 | 2014–2020 | |
| BMW | 540i / M550i | G30/G31 | 2017–2023 | |
| BMW | Z4 M40i | G29 | 2019+ | |
| Toyota | GR Supra 3.0 | A90/A91 | 2020+ |
Not sure? Call or text 945-954-1142 with your car or VIN.
- Free US shipping on orders over $250.
- Free pickup at our Dallas shop, usually ready within 24 hours.
- Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
- Want it installed? Book the install at thegbmotors.com.
Full details are on our shipping and returns page.
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