OVERVIEW
Dinan's carbon fiber engine cover is a direct, bolt-on replacement for the factory plastic cover on B58D-equipped G-chassis cars, finished in 2x2 gloss twill carbon fiber with opposing matte carbon fiber and white painted accents (gloss variant) for a finished, purposeful engine bay.
At 2.9 lb versus the OEM cover's 4.1 lb, it also sheds a bit of weight. Install is quick — about 15 minutes — with grommets included for a clean swap.
SPECS
- 2x2 gloss twill carbon fiber with opposing matte carbon fiber and white painted accents (gloss variant)
- 2.9 lb vs. 4.1 lb OEM cover
- Direct bolt-on replacement for the factory plastic engine cover
- Available in gloss or matte finish (this listing covers both — select your variant)
- Estimated install time: about 15 minutes
PARTS INCLUDED
- Carbon fiber engine cover
- Grommets for installation
TECH RESOURCES
Additional Parts Required
- None. Dinan specifies no additional hardware — grommets are included for a quick, direct swap.
Installation
- Dinan does not publish a downloadable installation PDF for this part; it is a direct swap onto the factory mounting points using the included grommets.
Notes
- G01/G02 X3/X4 M40i fitment is limited to 2020+ model years that use the B58D engine — confirm your engine code before ordering.
- This part number was split out from a multi-SKU draft listing that bundled it with the S58 engine cover and strut tower brace as additional variants; each has its own individual Speed Logic listing, so this SKU has been given its own listing to match. Gloss and matte are separate part numbers — confirm your finish before ordering.
PART NUMBER
- D590-0003 — Gloss Carbon Fiber Engine Cover, BMW B58D
- D590-0004 — Matte Carbon Fiber Engine Cover, BMW B58D
VEHICLE APPLICATIONS
| Make | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| BMW | M340i / M340i xDrive | G20 | B58D 3.0L Turbocharged I6 | 2020+ |
| BMW | M440i / M440i xDrive | G22 / G23 / G26 | B58D 3.0L Turbocharged I6 | 2021+ |
| BMW | M240i / M240i xDrive | G42 | B58D 3.0L Turbocharged I6 | 2022+ |
| BMW | X3 M40i (xDrive) | G01 | B58D 3.0L Turbocharged I6 | 2020–2026 |
| BMW | X4 M40i (xDrive) | G02 | B58D 3.0L Turbocharged I6 | 2020–2026 |
| BMW | Z4 M40i | G29 | B58D 3.0L Turbocharged I6 | 2020–2026 |