Dinan High Performance Adjustable Coil-Over Suspension System - BMW F90 M5 (2018-2023)
SaleThe F90 M5 is a twin-turbo V8 sedan that will run with sports cars, and it sits like a luxury car doing it. Too much wheel gap, too much body roll when you lean on it in a fast corner. Most owners do not want a harsh race setup to fix that. They want the M5 to look and feel like the M car it is, and still ride like one on the way to work.
The Dinan High Performance Adjustable Coil-Over Suspension System for the BMW F90 M5 does exactly that. It keeps your factory electronic shocks and replaces the springs with a Dinan-engineered setup that is 20% stiffer in front and 15% stiffer in the rear, with threaded collars that let you set ride height anywhere up to 2 in. lower in front and 2-1/8 in. lower in the rear.
How the F90 M5 Adjustable Coilover System Works
Because the factory adaptive dampers stay, your drive modes still work and the car keeps its compliance on rough roads. Dinan also converts the rear from the stock progressive-rate spring to a linear-rate spring, which makes the car more predictable at the limit and reduces body roll. Helper springs keep everything seated at full droop, and the stock upper spring mounts are retained for quiet operation.
How low should you go? The system allows up to 2 in. front and 2-1/8 in. rear, but Dinan recommends 1 in. front and 1-1/8 in. rear to keep the civilized ride the M5 is known for. Suspension packers and progressive bump stops are included so you can tune bump stop engagement to your ride height and your preferred balance of comfort and control.
Coilover Install, Clearance and Alignment
This is a professional-level job. Dinan rates it at 9.2 hours of labor, and the installer must confirm tire clearance at your chosen ride height, especially if you run aftermarket wheels or tires. Plan on a wheel alignment after the car is set to its final height. It is a suspension part with no effect on emissions. Dinan part number D190-0901. Sold by AutoTecknic, an authorized Dinan dealer.
What's Included
- Dinan performance springs, front and rear
- Threaded height-adjustment collars
- Front and rear helper springs
- Progressive bump stops
- Suspension packers for bump stop tuning
- Machined 6061-T6 aluminum components, black anodized
Key Features
- Retains the factory electronic shocks and M drive mode control
- Spring rates 20% stiffer front and 15% stiffer rear
- Rear converted from progressive to linear rate for more predictable handling
- Adjustable drop up to 2 in. front and 2-1/8 in. rear
- Dinan recommended setting: 1 in. front, 1-1/8 in. rear
- Helper springs keep the springs seated at full droop
- Stock upper spring mounts retained for quiet operation
- 6061-T6 aluminum components, black anodized
Vehicle Fitment
Fits the following BMW M5 models with factory electronic shocks:
- BMW M5 / F90 Sedan (2018-2023): M5
Installation Notes
Dinan rates this install at 9.2 hours. Have it done by a shop experienced with F90 suspension work, and follow the Dinan instructions included with the kit.
- Raise and safely support the car, then remove the wheels.
- Remove the front and rear strut and spring assemblies following BMW procedure.
- Transfer the factory electronic shocks into the Dinan spring, collar, helper spring and bump stop assemblies, adding packers as directed.
- Reinstall the assemblies and set ride height with the threaded collars, starting from Dinan's recommended 1 in. front and 1-1/8 in. rear.
- Check tire clearance at full lock and full compression, then have a wheel alignment performed.
