Dinan Anti-Roll Bar Set for BMW 2 / 3 / 4-Series xDrive 2012-2021

Dinan's adjustable anti-roll bar set for xDrive F22, F23, F30, F32, F33, and F36 cars (D120-0595) replaces the soft comfort bars BMW fits as standard with a pair of lightweight tubular bars tuned specifically for all-wheel-drive versions of these chassis. The front bar is 25 mm and the rear bar is 19 mm. Both are three-hole adjustable so you can set stiffness with the stock end links, and both use hollow construction to add rate without a pile of extra unsprung weight.

On xDrive cars the stock front bar is about 22.5 to 23.6 mm depending on the model, so the 25 mm Dinan bar can be set roughly 45 to 93 percent stiffer than stock. The rear bar is a much larger step: the stock rear bar is 12 mm, and Dinan rates this 19 mm bar about 359 to 474 percent stiffer depending on the hole you choose. The result is less body roll, more mechanical grip, and a more planted feel in corners while still leaving enough roll that the car does not feel like a race bar on the street.

This set is not compatible with rear-wheel-drive cars, or with wagon and Gran Turismo body styles. Those cars use a different bar (the RWD set is D120-0585). Dinan rates the job at about 7.4 hours. Coverage follows Dinan's standard limited warranty: the remainder of the vehicle factory limited warranty (up to 4 years / 50,000 miles) or 2 years / unlimited miles, whichever is greater.

US years below follow Dinan's 2012-2018 3-Series, 2014-2020 4-Series, and 2014-2021 2-Series xDrive titles, cut to each model's actual US production window. F30 330i, for example, ends in 2018 in the US even though later G20 330i cars exist; those newer cars are a different chassis and are not listed.

Features

• 25 mm adjustable front bar and 19 mm adjustable rear bar for xDrive cars
• Three-hole adjustment on both bars using stock BMW end links
• Tubular (hollow) construction
• Front rate about 45% to 93% stiffer than stock depending on the car and hole
• Rear rate about 359% to 474% stiffer than the stock 12 mm bar
• Not compatible with RWD vehicles or wagon and GT body styles

What's Included

• 25 mm tubular adjustable front anti-roll bar
• 19 mm tubular adjustable rear anti-roll bar
• Urethane bushings
• Heavy-duty brackets with grease fittings

Specifications

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.

Fitment Notes

• xDrive models only. RWD cars need D120-0585.
• Not compatible with F31 wagons or F34 Gran Turismo body styles.
• F30 330i and 340i US sedan years end in 2018. Later G20 cars are not listed.