Dinan Anti-Roll Bar Set, RWD – BMW M2 / M3 / M4 (G8x)

OVERVIEW

Dinan's tubular anti-roll bar set for RWD G8x M cars is a lighter, stiffer, multi-position adjustable replacement for the factory bars, sharpening turn-in and reducing body roll without the ride harshness of a spring-only setup.

Front bar steps up to 28mm from the OEM 23.5mm, and the rear to 26mm from 21.9mm, for an 18% stiffer front and 35–48% stiffer rear versus stock. The rear bar is 2-hole adjustable to dial in handling balance.

SPECS

• Front bar: 28mm (vs. 23.5mm OEM)
• Rear bar: 26mm (vs. 21.9mm OEM), 2-hole adjustable
• Stiffness increase: 18% front, 35–48% rear vs. stock
• High tensile strength alloy steel, tubular construction, powder coated finish
• Polyurethane bushings included
• RWD-specific — not for xDrive cars (see D120-0645)

PARTS INCLUDED

• Front and rear anti-roll bars
• Polyurethane bushings
• Mounting hardware and grease

TECH RESOURCES

Additional Parts Required

• None. Dinan specifies no additional hardware for this part beyond what's included. Subframe dropping is required during install, so professional installation is recommended.

Installation

• Dinan installation instructions – D120-0640 (RWD anti-roll bar set)

Notes

• RWD only — confirm your drivetrain before ordering. The xDrive-specific set is a separate part number, D120-0645.

PART NUMBER

• D120-0640 — Dinan Anti-Roll Bar Set, RWD, BMW M2 / M3 / M4 (G8x)

VEHICLE APPLICATIONS