Pop the hood on a G20 M340i or a G42 M240i and the B58 looks great. The empty space between the strut towers does not. Your chassis is already stiff, but there is nothing tying those towers together when you load up the front end in a fast corner. That is steering precision you are leaving on the table.
The Dinan Billet Aluminum Strut Tower Brace for the BMW G20 3 Series and G42 2 Series fills that gap with solid, black anodized billet aluminum. It links both front strut towers to cut chassis flex under cornering load, so turn-in feels crisper and the front end stays more consistent through a long sweeper. It bolts into the factory holes in about half an hour.
Why a Billet Aluminum Strut Tower Brace for the G20 and G42
Billet aluminum means the brace is machined from a solid block, not stamped or bent from tube. That gives you a rigid link between the towers without a noticeable weight penalty, and the black anodized finish looks like it belongs in a modern BMW engine bay.
Already running a Dinan intake, or planning one? Fitment is guaranteed with the stock intake and with Dinan intake systems that have the brace valley (D760-0058 / D760-0059). Dinan does not guarantee clearance with other aftermarket intakes or with its flat-lid intake designs, so check your setup before you order.
Strut Tower Brace Fitment Check Before You Buy
This kit is for G20 3 Series and G42 2 Series cars that did not come with factory strut braces. The supplied hardware does not fit cars that shipped with braces, and it does not fit the G2x 4 Series, which uses a different Dinan kit. It has no effect on emissions and needs no tune or coding. Dinan part number D180-0014. Sold by AutoTecknic, an authorized Dinan dealer.
What's Included
- Dinan black anodized billet aluminum strut tower brace
- Mounting hardware for G20 3 Series and G42 2 Series
Key Features
- Solid billet aluminum construction, black anodized
- Links both front strut towers to reduce chassis flex in corners
- Sharper, more consistent steering response
- Fits the stock intake and Dinan intakes with the brace valley (D760-0058 / D760-0059)
- Bolts into factory holes, no cutting or drilling
- About 0.5 hours of labor
Vehicle Fitment
Fits the following BMW models that did not come with factory strut braces:
- BMW 3 Series / G20 Sedan (2019-2026): 330i
- BMW 3 Series / G20 Sedan (2020-2026): M340i
- BMW 2 Series / G42 Coupe (2022-2026): 230i, M240i
Not for the G2x 4 Series or for G20 / G42 cars equipped with factory strut braces.
Installation Notes
A simple bolt-on job with basic hand tools. Confirm your car did not come with factory braces before you start, and follow the Dinan instructions included with the kit.
- With the engine cool, open the hood and locate the factory mounting holes on both front strut towers.
- Position the brace across the engine bay and check clearance to the intake and engine covers.
- Install the supplied hardware through the factory holes on both towers.
- Torque the hardware to the value in the Dinan instructions and close the hood to confirm clearance.
