Dinan Anti-Roll Bar Set – 2012-2018 BMW 320i/328i/330i/335i/340i, 2014-2020 BMW 428i/430i/435i/440i and 2014-2021 BMW 228i/230i/M235i/M240i

Overview

Almost all street cars come from the manufacturer with an anti-roll bar as it is a common part of modern suspension systems. However, they are designed to be overly soft for maximum comfort. An anti-roll bar does exactly what it says by reducing body roll in all situations. Every Dinan tuned anti-roll bar is built and tuned specifically for each BMW chassis. Lowering the amount of body roll keeps your BMW more level than stock (while still allowing just enough body roll) to improve mechanical grip. This improvement gives the driver a much more planted and confident feeling in every corner.

Front Anti-Roll Bar

Add a 28mm Lightweight Tubular Adjustable Front Anti-Roll Bar to reduce body roll to improve grip and stability while saving weight at the same time. This anti-roll bar is adjustable up to 45% to 97% stiffer than the stock bar*. This 3 hole bar can be mounted in 3 different positions with stock BMW end links.

*Stock bar is 22.2 mm on the M235i/M240i which means the new bar can be adjusted from 45% to 76% stiffer than the stock front sway bar.

The stock bar is 24.2 mm on the 328i/330i w M-Sport which means the new bar can be adjusted from 50% to 81% stiffer than the stock front sway bar.

The stock bar is 21.2 mm on the 335i/340i/435i/440i which means the new bar can be adjusted from 63% to 97% stiffer than the stock front sway bar. The stock bar is 22.2 mm on the 335i/340i/435i/440i w M-Sport which means the new bar can be adjusted from 54% to 87% stiffer than the stock front sway bar.

Rear Anti-Roll Bar

Add a 19mm Lightweight Tubular Adjustable Rear Anti-Roll Bar to reduce body roll improve grip and stability while saving weight at the same time. This anti-roll bar is adjustable up to 84% to 474% stiffer than the stock bar*. This 3 hole bar can be mounted in 3 different positions with stock BMW end links.

*Stock bar is 15 mm on the M235i/M240i which means the new bar can be adjusted from 84% to 130% stiffer than the stock rear sway bar.

Stock bar is 12 mm on the 335i/340i/435i/440i which means the new bar can be adjusted from 359% to 474% stiffer than the stock rear sway bar.

Stock bar is 13 mm on the 328i/330i/335i/340i/435i/440i w M-Sport which means the new bar can be adjusted from 243% to 329% stiffer than the stock rear sway bar.

Features:

• Front – Large 28mm size (stock bar is 21.2 to 24.2mm depending on application); Rear – Large 19mm size (stock bar is 12-15mm depending on application)
• Front – 3 hole bar with 3 possible positions on bar; Rear – 3 hole bar with 3 possible positions on bar
• Tubular (hollow) construction
• Only tubular anti-roll bars with a large range of adjustment on the market
• Less body roll
• More mechanical grip
• More stable at the limit

Specs

Tech Resources

Instructions for Part# D120-0585

Not compatible with xDrive vehicles or the wagon and GT body styles.

Application

2021 BMW M240I Base 3.0L L6 Coupe
2021 BMW M240I Base 3.0L L6 Convertible
2021 BMW 230I Base 2.0L L4 Coupe
2021 BMW 230I Base 2.0L L4 Convertible
2020 BMW M240I Base 3.0L L6 Coupe
2020 BMW M240I Base 3.0L L6 Convertible
2020 BMW 440I GRAN COUPE Base 3.0L L6 Hatchback
2020 BMW 440I Base 3.0L L6 Coupe
2020 BMW 440I Base 3.0L L6 Convertible
2020 BMW 430I GRAN COUPE Base 2.0L L4 Hatchback
2020 BMW 430I Base 2.0L L4 Coupe
2020 BMW 430I Base 2.0L L4 Convertible
2020 BMW 230I Base 2.0L L4 Coupe
2020 BMW 230I Base 2.0L L4 Convertible
2019 BMW M240I Base 3.0L L6 Coupe
2019 BMW M240I Base 3.0L L6 Convertible
2019 BMW 440I GRAN COUPE Base 3.0L L6 Hatchback
2019 BMW 440I Base 3.0L L6 Coupe
2019 BMW 440I Base 3.0L L6 Convertible
2019 BMW 430I GRAN COUPE Base 2.0L L4 Hatchback
2019 BMW 430I Base 2.0L L4 Coupe
2019 BMW 430I Base 2.0L L4 Convertible
2019 BMW 230I Base 2.0L L4 Coupe
2019 BMW 230I Base 2.0L L4 Convertible
2018 BMW M240I Base 3.0L L6 Coupe
2018 BMW M240I Base 3.0L L6 Convertible
2018 BMW 440I GRAN COUPE Base 3.0L L6 Hatchback
2018 BMW 440I Base 3.0L L6 Coupe
2018 BMW 440I Base 3.0L L6 Convertible
2018 BMW 430I GRAN COUPE Base 2.0L L4 Hatchback
2018 BMW 430I Base 2.0L L4 Coupe
2018 BMW 430I Base 2.0L L4 Convertible
2018 BMW 340I Base 3.0L L6 Sedan
2018 BMW 330I Base 2.0L L4 Sedan
2018 BMW 320I Base 2.0L L4 Sedan
2018 BMW 230I Base 2.0L L4 Coupe
2018 BMW 230I Base 2.0L L4 Convertible
2017 BMW M240I Base 3.0L L6 Coupe
2017 BMW M240I Base 3.0L L6 Convertible
2017 BMW 440I GRAN COUPE Base 3.0L L6 Hatchback
2017 BMW 440I Base 3.0L L6 Coupe
2017 BMW 440I Base 3.0L L6 Convertible
2017 BMW 430I GRAN COUPE Base 2.0L L4 Hatchback
2017 BMW 430I Base 2.0L L4 Coupe
2017 BMW 430I Base 2.0L L4 Convertible
2017 BMW 340I Base 3.0L L6 Sedan
2017 BMW 330I Base 2.0L L4 Sedan
2017 BMW 320I Base 2.0L L4 Sedan
2017 BMW 230I Base 2.0L L4 Coupe
2017 BMW 230I Base 2.0L L4 Convertible
2016 BMW M235I Base 3.0L L6 Coupe
2016 BMW M235I Base 3.0L L6 Convertible
2016 BMW 435I GRAN COUPE Base 3.0L L6 Hatchback
2016 BMW 435I Base 3.0L L6 Coupe
2016 BMW 435I Base 3.0L L6 Convertible
2016 BMW 428I GRAN COUPE Base 2.0L L4 Hatchback
2016 BMW 428I Base 2.0L L4 Coupe
2016 BMW 428I Base 2.0L L4 Convertible
2016 BMW 340I Base 3.0L L6 Sedan
2016 BMW 328I Base 2.0L L4 Sedan
2016 BMW 320I Base 2.0L L4 Sedan
2016 BMW 228I Base 2.0L L4 Coupe
2016 BMW 228I Base 2.0L L4 Convertible
2015 BMW M235I Base 3.0L L6 Coupe
2015 BMW M235I Base 3.0L L6 Convertible
2015 BMW 435I GRAN COUPE Base 3.0L L6 Hatchback
2015 BMW 435I Base 3.0L L6 Coupe
2015 BMW 435I Base 3.0L L6 Convertible
2015 BMW 428I GRAN COUPE Base 2.0L L4 Hatchback
2015 BMW 428I Base 2.0L L4 Coupe
2015 BMW 428I Base 2.0L L4 Convertible
2015 BMW 335I Base 3.0L L6 Sedan
2015 BMW 328I Base 2.0L L4 Sedan
2015 BMW 320I Base 2.0L L4 Sedan
2015 BMW 228I Base 2.0L L4 Coupe
2015 BMW 228I Base 2.0L L4 Convertible
2014 BMW M235I Base 3.0L L6 Coupe
2014 BMW 435I Base 3.0L L6 Coupe
2014 BMW 435I Base 3.0L L6 Convertible
2014 BMW 428I Base 2.0L L4 Coupe
2014 BMW 428I Base 2.0L L4 Convertible
2014 BMW 335I Base 3.0L L6 Sedan
2014 BMW 328I Base 2.0L L4 Sedan
2014 BMW 320I Base 2.0L L4 Sedan
2014 BMW 228I Base 2.0L L4 Coupe
2013 BMW 335I Base 3.0L L6 Sedan
2013 BMW 328I Base 2.0L L4 Sedan
2013 BMW 320I Base 2.0L L4 Sedan
2012 BMW 335I Base 3.0L L6 Sedan
2012 BMW 328I Base 2.0L L4 Sedan
2012 BMW 320I Base 2.0L L4 Sedan