Whiteline Rear Anti Roll Bar - 20mm heavy duty - 3 Series E9X EXCL M3 / 1 Series E81, E82, E87, E88 EXCL M

Transform the way your BMW corners

Upgrade your chassis balance with this Whiteline rear stabiliser. The 20 mm fixed-rate design tightens up the back end for flatter cornering, sharper turn-in and a more composed, confidence-inspiring drive on fast road and track. Expect a noticeable reduction in roll through bends, improved traction on exit and a more neutral balance that helps dial out factory understeer.

Why drivers choose this rear sway bar

• 20 mm heavy duty rear bar for a meaningful handling upgrade
• Fixed-rate, non adjustable design for fit-and-forget simplicity
• Helps keep the tyres planted for consistent grip and stability
• Enhances steering response and chassis precision without fuss
• Top value suspension mod for instant results

Compatible BMW models

Designed for the following platforms, excluding M models:

• BMW 3 Series E90, E91, E92, E93 rear fitment only. Not suitable for M3.
• BMW 1 Series E81, E82, E87, E88 rear fitment only. Not suitable for 1 Series M.

What you will notice

• Flatter, more stable cornering
• More predictable rear-end control
• Better use of tyre contact patch for real-world speed
• Greater confidence on B-roads and during track days

Trusted by enthusiasts

We have fitted this Whiteline rear bar for customers looking for a serious handling upgrade, and the feedback is consistently positive. Drivers report a tighter, more responsive feel with a cleaner, more neutral balance that makes the car easier to place and quicker through the twisty stuff.

Fitting and support

Professional installation recommended. MJ Modifications offers in-house fitting and alignment in Warwickshire. Request a quote: info@mjmodifications.co.uk.

Search-friendly terms

BMW E90 rear sway bar upgrade, E92 rear stabiliser, E93 rear roll bar, E81 handling bar, E82 rear suspension upgrade, E87 anti-sway bar, E88 chassis upgrade, Whiteline rear bar 20 mm, heavy duty rear torsion bar, BMW 1 Series and 3 Series suspension tuning.