BMW Z4 M40i G29 Engine & Fuel Upgrades
63 engine & fuel upgrades listed for the BMW Z4 M40i G29 (2019+), from Spool Performance, VTT, SPL Parts and Dinan.
Spool Performance
Spool BMW Gen 1 B58 Wireless Ethanol Analyzer Kit
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
$419.00Available
![Spool IFX150 Upgraded DI Injectors [Gen 1 B58]](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/InjectoruploadB58Gen1.jpg?v=1793145541&width=3840)
Spool Performance
Spool IFX150 Upgraded DI Injectors [Gen 1 B58]
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
$1,799.00Available
![Spool Stage 1 IFX350 Upgraded DI Injectors +30% [Gen 2 B58]](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/Gen2injectors-1014x912.jpg?v=1793145540&width=3840)
Spool Performance
Spool Stage 1 IFX350 Upgraded DI Injectors +30% [Gen 2 B58]
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 2 more
$1,599.00Available
Spool Performance
Spool A90/ A91 Supra IFX350 Gen2 B58 upgraded DI injectors Stage 1 +30%
Fits: Z4 M40i G29, GR Supra 3.0 A90/A91
$1,599.00Available
Spool Performance
Spool A90/ A91 Supra IFX350-X Gen2 B58 upgraded DI injectors Stage 2 +60%
Fits: Z4 M40i G29, GR Supra 3.0 A90/A91
$1,999.00Available
![Spool Stage 2 IFX350X Upgraded DI Injectors +60% [Gen 2 B58]](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/Gen2injectors4-1014x912_cf11da97-2764-4f39-9a21-b5bcd1ce422c.jpg?v=1793145524&width=3840)
Spool Performance
Spool Stage 2 IFX350X Upgraded DI Injectors +60% [Gen 2 B58]
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 2 more
$1,999.00Available
Spool Performance
SPOOL B58 G2 / S58 Plug and Play Motiv Reflex Plus Harness
Fits: M2 G87, M3 G80/G81, M4 G82/G83 & 10 more
$149.99Available
Spool Performance
SPOOL B58/S58 Plug and Play Ethanol Sensor Harness
Fits: M2 G87, M3 G80/G81, M4 G82/G83 & 10 more
$24.99Available
Spool Performance
SPOOL B58 Gen 1 Plug and Play Motiv Reflex Plus Harness
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
$149.99Available
Spool Performance
Spool B58/S58 Billet Race Torque Converter Upgrade - No Core Required!
Fits: M2 G87, M3 G80/G81, M4 G82/G83 & 10 more
$2,199.00Available
Spool Performance
Spool B58 G2 / S58 Full Race Ptcan-2 Motiv Reflex Harness
Fits: M2 G87, M3 G80/G81, M4 G82/G83 & 10 more
$299.99Available
Spool Performance
Spool Injector Dynamics IDX1050XDS | B58 S58 Port Injection | Set of 6
Fits: M2 G87, M3 G80/G81, M4 G82/G83 & 10 more
$806.00Available
Spool Performance
SPOOL B58 S58 Steel Heat Shield for Top Mount Turbo Setups
Fits: M2 G87, M3 G80/G81, M4 G82/G83 & 10 more
$59.99Available
![Spool Stage 3 Low Pressure Fuel Pump - [FXX Gen 1 B58]](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/stage_3_gen_1_d759071d-09ac-4d88-b9d6-f305c8dace6c.jpg?v=1793145469&width=3840)
Spool Performance
Spool Stage 3 Low Pressure Fuel Pump - [FXX Gen 1 B58]
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
From$849.00Available
![Spool Stage 3 Low Pressure Fuel Pump - DIY Kit [FXX Gen 1 B58]](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/diy_kit.jpg?v=1793145467&width=3840)
Spool Performance
Spool Stage 3 Low Pressure Fuel Pump - DIY Kit [FXX Gen 1 B58]
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
$449.00Available
![Spool FX-200 Upgraded High Pressure Pump [Gen 1 B58]](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/SpoolFX200-2_900x900_crop_center_636381bf-6fe6-4c2c-88ad-e7f024559f43.webp?v=1793145460&width=3840)
Spool Performance
Spool FX-200 Upgraded High Pressure Pump [Gen 1 B58]
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
From$1,799.00Available
![Spool Stage 3 Low Pressure Fuel Pump - DIY Kit [Gen 2 B58]](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/3_c0567b9f-7e9b-4750-a7eb-f0cf3aef3e68.png?v=1793145451&width=3840)
Spool Performance
Spool Stage 3 Low Pressure Fuel Pump - DIY Kit [Gen 2 B58]
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 2 more
$749.00Available
![Spool Stage 3 Low Pressure Fuel Pump - DIY Kit [A90/ A91 Supra B58/B46/B48]](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/3_ca577dc8-2f81-4cea-906d-01c5b5346c54.png?v=1793145436&width=3840)
Spool Performance
Spool Stage 3 Low Pressure Fuel Pump - DIY Kit [A90/ A91 Supra B58/B46/B48]
Fits: M240i / M235i F22/F23, 340i / 335i / 330i F30/F31, 440i / 435i F32/F33/F36 & 2 more
$749.00Available
Spool Performance
Spool A90 / A91 Toyota Supra B58 Gen 2 Stage 3 FX-350 Upgraded High Pressure Fuel Pump
Fits: M240i / M235i F22/F23, 340i / 335i / 330i F30/F31, 440i / 435i F32/F33/F36 & 2 more
From$1,999.00Available
![Spool FX-350 Upgraded High Pressure Pump [Gen 1 B58]](https://cdn.shopify.com/s/files/1/0734/5084/8395/files/S58_fx350_2.jpg?v=1793145427&width=3840)
Spool Performance
Spool FX-350 Upgraded High Pressure Pump [Gen 1 B58]
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
From$1,999.00Available
Spool Performance
Spool BMW Gen 2 B58 Wireless Ethanol Analyzer Kit
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 2 more
From$449.00Available
Spool Performance
Spool BMW B58 Gen1 Auxiliary Split Fuel System
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
From$1,299.00Available
Spool Performance
Spool BMW B58 Gen2 Auxiliary Split Fuel System
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
From$1,299.00Available
P3 Gauges
P3 BMW B48/B58 Boost Tap
Fits: M340i G20/G21, M440i G22/G23/G26, M240i G42 & 6 more
$100.00Available
More for the Z4 M40i G29
- Z4 M40i G29 coilovers & suspension33
- Z4 M40i G29 intakes29
- Z4 M40i G29 turbo & boost parts18
- Z4 M40i G29 intercoolers & manifolds16
- Z4 M40i G29 brake pads & rotors16
- Z4 M40i G29 maintenance parts14
- Z4 M40i G29 cooling upgrades13
- Z4 M40i G29 exhaust systems8
Buying guides
Every part here is listed for the BMW Z4 M40i G29. Check the product description for exact years, body style and drivetrain, or call or text 945-954-1142 with your VIN and we'll confirm fitment before it ships. Looking for other cars? See all engine & fuel.