Dinan Coil Over Performance Upgrade - M-Spec Performance

Dinan Coil Over Performance Upgrade

Dinan Adjustable Performance Coil-Over Suspension System

BMW F90 M5

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 braking 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 the Dinan Adjustable Performance 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.
  • Substantial reduction in body roll.
  • 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.

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Written by M-Spec Performance