Dinan
Dinan 21-27 BMW M3/M4 (G80/G82/G83) Adjustable Front & Rear Sway Bar Set - 28mm & 26mm
Dinan 21-27 BMW M3/M4 (G80/G82/G83) Adjustable Front & Rear Sway Bar Set - 28mm & 26mm
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Every Dinan tuned anti-roll bar on the other hand is built and tuned specifically for each targeted BMW chassis to provide a more responsive and crisp experience. By reducing the amount of body roll your BMW is kept much closer to 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 making it a must-have upgrade for back road and track enthusiasts alike.
Anti-roll bars are a common part of modern suspension systems whose job it is to do what the name implies – reduce body roll in all situations. However, from the factory, they are often designed to be overly soft for maximum comfort and not explicitly for improved driving dynamics.
Features
- Made of high tensile strength alloy steel with tubular (hollow) construction for maximum strength while limiting weight
- Rear bars are 2-hole adjustable allowing you to fine tune settings for environment or comfort preference
- Larger, more robust, bars; Front - 28mm size (vs. stock 23.5mm), Rear - 26mm size (vs. stock 21.9mm)
- Increased stiffness to combat roll; Front - 18% stiffer, Rear - 35-48% stiffer
- Includes polyurethane bushings and grease
- More stable at the limit
- More mechanical grip
- Less body roll
Vehicle Fitment
- 2023-2027 BMW M2
- 2021-2027 BMW M3
- 2021-2027 BMW M4
Please verify exact fitment (engine, submodel, and trim) before purchasing.
Manufacturer Part Number: D120-0640
Images are for illustration purposes only; actual product may vary.
⚠ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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Manufacturer's Warranty — Dinan
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Manufacturer's Warranty — Dinan
Dinan warrants its Performance Products to be free from defects in materials and workmanship, and the term depends on the car. If the vehicle is still covered by the original manufacturer's new car limited warranty (4 years or 50,000 miles — 80,000 km in Canada — from first retail sale; US and Canadian specification vehicles only), the Dinan part is covered for the remaining term of that new car warranty, and an Authorized Dinan Dealer repairs or replaces the defective Dinan component without charge for parts or labor, including any original manufacturer component directly affected by it. If the car is out of its new car warranty, Dinan Performance Products carry a 2-year, unlimited mileage warranty from the date of original purchase; labor is reimbursed at the dealer's standard flat-rate, but repairs to affected original manufacturer components are not reimbursed. DINANTRONICS Sport, DINANTRONICS X and DINANFLASH handheld units are 1 year, unlimited mileage; refurbished products are 90 days; and racing-only parts are guaranteed against defects in workmanship only — they are not warranted against wear or failure and may affect the BMW factory and emissions warranty. Dinan's warranty is transferable when the vehicle it was installed on is sold. A lawful invoice as proof of purchase is required, and the defective part must be returned to Dinan for verification before any adjustment. Not covered: return shipping, towing and rental car charges; unauthorized modification of a Dinan part, or damage from using other manufacturers' products alongside Dinan systems; non-DCT clutch assemblies, brake rotor warp and friction materials; maintenance items such as spark plugs, filters, lubricants, fluids, coolant, drive belts and light bulbs; negligence, abuse or improper installation; engine damage from altering Dinan's original boost pressure; improper or contaminated fuel; collision damage; environmental damage, flood, fire or road-salt corrosion; and any vehicle operated in a competitive event or subjected to aggressive track conditions. The warranty is void if the VIN or odometer has been altered, if the vehicle was declared a total loss or salvage, or if it has been used in competition. Note that installing performance products may affect the vehicle manufacturer's own new car warranty. Because Dinan handles claims through an Authorized Dinan Dealer, if you bought it here, contact PitStopTuning and we'll file the claim with Dinan for you rather than approaching Dinan directly.
Warranty terms are set by the manufacturer and may change. Contact us if you need help with a warranty claim.

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