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Dinan High Performance Adjustable Coil-Over Suspension System for BMW F90 M5

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For the driver that demands the best out of their vehicle.  The Dinan Adjustable Coil-Over Suspension was bred in the race lab but refined on the street for maximum versatility. No matter the environment, the traction that is bestowed upon the vehicle from the improved suspension will inspire new found confidence when running at higher speeds. From the substantial reduction in body roll as well as reduction of dive under breaking and squat under acceleration, Dinan guarantees you superior handling, performance, and comfort. 

Dinan's design retains the superb factory electronic shocks but swaps the springs to a more aggressive formula and implements threaded collars to allow the user to change the ride height. While a stiffer spring is typically associated with diminished ride quality Dinan has also swapped the progressive rate rear springs in favor of a much more predictable linear rate spring design. This allows for a more compliant feel while still being able to enjoy the benefits of a stiffer setup such as the reduction in body roll. The end result is a sleek lowered stance that provides improved handling to go along with its stunning visual appearance. The springs combined with progressive bump stops and other components increase travel that allows the car to be lowered an incredibly low 2" in the front and 2-1/8" in the rear. However, in order to retain the ride quality synonymous with Dinan suspension kits the recommended drop of 1" in front and 1-1/8" in the rear is advised. For suspension connoisseurs or those that are just simply very particular, suspension packers are included to fine tune handling and comfort by changing the clearance of the progressive bump-stops, something no respectable race car is without.

Benefits of Dinan's High Performance Adjustable Coil-Over Suspension System for the BMW F90 M5:

Threaded collars allow easy and precise front & rear vehicle height adjustments.
Up to 2" of lowering in front and 2-1/8" of lowering in back are possible depending on tire clearance but with diminished ride quality.  Dinan recommends a 1" drop in front and a 1-1/8" drop in the rear to maintain a civilized ride.
Spring rates are 20% stiffer in front and 15% stiffer in the rear. Stock rear springs are progressive whereas the Dinan springs are linear. 
Helper springs are utilized in the front and rear to maintain proper suspension operation under droop conditions as well as accommodate the extensive travel of the stock shocks.
Substantial reduction in body roll.
Included suspension packers allow adjustment of bump-stop clearance to fine-tune handling and comfort.
Dinan-spec progressive bump stops improve ride quality at lowered ride heights.
Components are machined from 6061-T6 aluminum and black anodized for a sporty appearance as well as corrosion protection. 
Stock upper spring mounts are utilized for quiet operation.

Shipping & Returns

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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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