Dinan Lightweight Tubular Front Anti-Roll Bar – BMW 128i / 135i / 328i / 335i (E82/E90/E92/E93)

OVERVIEW

Almost all street cars leave the factory with anti-roll bars, but they are tuned soft for maximum comfort. An anti-roll bar reduces body roll, and every Dinan bar is built and tuned for a specific BMW chassis. Keeping the car flatter than stock — while still allowing just enough roll — improves mechanical grip and gives the driver a far more planted, confident feeling in every corner.

This Lightweight Tubular Adjustable Front Anti-Roll Bar improves grip and stability while saving weight. It is 38% lighter than a solid bar of comparable stiffness and adjusts from 42% to 57% stiffer than the stock 26.5mm bar. The two-hole bar can be mounted in three different positions, and the supplied end links use left- and right-hand threads for easy length adjustment. It may be added to the Dinan Stage 1 Suspension System for owners building a high-performance suspension in phases.

SPECS

• 28mm tubular front anti-roll bar (stock bar is 26.5mm)
• Adjustable from 42% to 57% stiffer than stock
• 2-hole bar with 3 possible mounting positions
• Supplied end links are left- and right-hand threaded for length adjustment
• Tubular (hollow) construction — 38% lighter than a solid bar of comparable stiffness
• Not compatible with xi / xDrive (AWD) vehicles, nor with the 128i / 135i convertible
• May be added to the Dinan Stage 1 Suspension System
• Dinan warranty: if the vehicle is still covered by the BMW new-car limited warranty, the part is warranted for the remainder of that coverage, limited to 4 years / 50,000 miles; otherwise 2 years, unlimited mileage from the date of original purchase. Wear items, maintenance parts and fluids are excluded.

PARTS INCLUDED

• 1x Anti-roll bar (D122-0530)
• 1x Hardware kit (D133-0530A), containing:
• 1x Urethane packet
• 2x Bushing brackets with fittings
• 2x Bushings
• 2x End link assemblies
• 1x Left and 1x right wiring bracket
• 2x Tie straps

TECH RESOURCES

Additional Parts Required

• None. Dinan specifies no additional hardware for this part — bushings, brackets, end links and fasteners are all supplied.
• Customer-supplied tools and a vehicle lift or jack stands are required.

Installation

• Dinan D120-0530 Adjustable Anti-Roll Bar — installation instructions INS133-0530A (PDF)

Notes

• Excludes all xi / xDrive (AWD) models and the E88 128i / 135i convertible. Dinan lists the 335is application with the N54 engine only.

PART NUMBER

• D120-0530

VEHICLE APPLICATIONS