The factory brace in an S58 engine bay is steel. It does its job, and it weighs 8.4 lbs doing it, right over the front axle of a car BMW spent years putting on a diet. If you care about how the car turns in and how the bay looks when the hood is up, there is a better way to do it.
The Dinan Matte Carbon Fiber Strut Tower Brace for the BMW G87 M2, G80 M3 and G82/G83 M4 replaces the factory steel bracing with 2x2 twill carbon fiber and inset aluminum mounting points. It weighs 2.8 lbs. That is 5.6 lbs off the nose of the car with a brace built to keep the strut towers locked together under hard cornering.
Carbon Fiber Strut Tower Brace Built for the S58 Cars
The carbon structure carries the load between the towers, and the inset aluminum mounting points give the brace a precise, solid connection to the factory mounts. This is 100% genuine carbon fiber, not a wrap or a hydro-dipped part. The matte finish shows the real 2x2 twill weave with a low-glare, track-car look.
Running the Dinan carbon fiber cold air intake? The brace was designed to complement it, and it is also offered in gloss if your intake or trim is gloss. Pick the finish that matches the rest of your bay.
Install Time and Legal Status
Dinan rates the install at 0.25 hours using the factory mounting hardware. No cutting, drilling or tuning. Dinan currently lists this brace as not legal for sale or use in the State of California, with CARB testing for 50-state compliance pending. Dinan part number D180-0015-B. Sold by AutoTecknic, an authorized Dinan dealer.
What's Included
- Dinan matte 2x2 twill carbon fiber strut tower brace with inset aluminum mounting points
Key Features
- 2.8 lbs, 5.6 lbs lighter than the 8.4 lb OEM steel brace
- Real 2x2 twill carbon fiber in a matte finish, not a wrap or overlay
- Inset aluminum mounting points for a solid connection to the factory mounts
- Ties the front strut towers together for consistent steering response
- Designed to complement the Dinan carbon fiber cold air intake
- Bolt-on with factory mounting hardware, about 15 minutes
Vehicle Fitment
Fits the following S58-powered BMW M models:
- BMW M2 / G87 Coupe (2023-2026): M2
- BMW M3 / G80 Sedan (2021-2026): M3, M3 Competition, M3 Competition xDrive
- BMW M4 / G82 Coupe (2021-2026): M4, M4 Competition, M4 Competition xDrive
- BMW M4 / G83 Convertible (2022-2026): M4 Competition xDrive Convertible
Installation Notes
One of the quickest upgrades you can make to a G8X M car. Basic hand tools and the Dinan instructions included with the brace are all you need.
- With the engine cool, open the hood and remove any engine bay covers over the factory brace mounts.
- Unbolt and remove the factory steel strut brace, keeping the factory mounting hardware.
- Set the Dinan carbon brace in place on the factory mounting points.
- Reinstall the factory hardware and torque it to the value in the Dinan instructions.
