Spool Plug and Play Motiv ReFlex+ Harness - F-Series Gen 1 B58
Ships from the brand or distributor, usually in 3–7 business days
Make sure this fits your car
Fits: BMW F-series B58: M140i, M240i (F22), 340i (F30), 440i (F32)
- Free US shipping over $250
- 30-day returns on unused parts
- Fitment help before you buy
Spool Performance B58 Gen 1 Plug-and-Play Reflex+ Install Harness The Spool Performance Plug-and-Play Install Harness is the ultimate solution for installing a Motiv Reflex+ on your B58 Gen 1 -powered vehicle—no cutting, splicing, or depinning required. Why choose our harness over others? What sets our kit apart is its modular design. Rather than replacing the entire Reflex flying lead harness, our plug-and-play solution connects directly to it. You simply swap out the sub-harness that typically comes standard and replace it with ours. That means no more posi-tap connectors and no pinning into the DME—just plug it in and go. This also means significant cost savings, avoiding the need to spend over $600 on a full custom harness. No tune changes are required when swapping over from posi-tap to our PnP harness.
Fits: BMW F-series B58: M140i, M240i (F22), 340i (F30), 440i (F32)
Brand: Spool Performance
BMW F-series B58: M140i, M240i (F22), 340i (F30), 440i (F32)
| Model | Chassis | Years | Engine | Fits |
|---|---|---|---|---|
| M140i | F20/F21 | 2016–2019 | Gen 1 B58 | |
| M240i | F22/F23 | 2016–2021 | Gen 1 B58 | |
| 340i | F30/F31/F34 | 2016–2019 | Gen 1 B58 | |
| 440i | F32/F33/F36 | 2017–2020 | Gen 1 B58 | |
| 540i | G30/G31 | 2017–2019 | Gen 1 B58 | |
| 740i | G11/G12 | 2016–2019 | Gen 1 B58 | |
| X3 M40i | G01 | 2018–2019 | Gen 1 B58 | |
| M340i | G20/G21 | 2019+ | Gen 2 B58 (TU) | |
| M440i | G22/G23/G26 | 2021+ | Gen 2 B58 (TU) | |
| M240i | G42 | 2022+ | Gen 2 B58 (TU) | |
| Z4 M40i | G29 | 2019+ | Gen 2 B58 (TU) | |
| GR Supra 3.0 | A90/A91 | 2020+ | Gen 2 B58 (TU) | |
| 540i | G30/G31 | 2020–2023 | Gen 2 B58 (TU) | |
| 740i | G11/G12 | 2020–2022 | Gen 2 B58 (TU) | |
| X3 M40i | G01 | 2020+ | Gen 2 B58 (TU) |
Not sure? Email sales@b58racing.com with your VIN.
- Ships from the brand or distributor, usually in 3–7 business days.
- Free US shipping on orders over $250.
- Unused parts can be returned within 30 days. Some items are marked no-refund in their description.
Full details are on our shipping and returns page.
Pairs well with
Motiv ReFlex+ 0-10 Bar Pressure Sensor
Motiv ReFlex+ Control Unit
VTT Plug & Play Pre/Post Throttle 5-Bar / 6-Bar MAP Sensor Kit
