ALTA 22mm Rear Adjustable Sway Bar – MINI Cooper / S / JCW / Clubman / Coupe (SKU: AMP-SUS-310)

Upgrade your MINI’s handling and cornering precision with the ALTA 22mm Rear Adjustable Sway Bar. Designed to significantly reduce body roll and increase chassis control, this solid steel sway bar is a direct upgrade from the factory unit, delivering a dramatic improvement in cornering grip and stability.

Constructed from precision-bent solid steel, this sway bar features laser-cut and MIG-welded ends for strength and accuracy. With three adjustable endlink positions, drivers can fine-tune stiffness up to 329% over stock, making this a perfect choice for spirited daily driving or weekend track days.

Key Features:

• 22mm Solid Steel Construction – Provides strength, consistency, and long-term durability

• Adjustable Stiffness – Choose from 3 settings for tailored handling:

  • Setting #1: 213% stiffer / 250 lbs/in

  • Setting #2: 260% stiffer / 305 lbs/in

  • Setting #3: 329% stiffer / 386 lbs/in

• Precision Manufacturing – Laser-cut, MIG-welded ends for perfect fit and performance

• Corrosion-Resistant Finish – Red powder coating for style and protection

• Centering Rings – Keeps bar centered during aggressive cornering

• Polyurethane Bushings Included – For improved response and longevity

• Grease Pockets – Extends maintenance intervals

• Includes ALTA License Plate Frame and Stickers

• 5-Year ALTA Warranty

Vehicle Fitment:

• MINI Cooper: 2002–2013

• MINI Cooper S: 2002–2013

• MINI Cooper JCW: 2004–2013

• MINI Clubman / Clubman S: 2008–2013

• MINI Coupe / Roadster / S: 2012+

What’s Included:

• (1) ALTA 22mm Rear Adjustable Sway Bar

• (2) Polyurethane Bushings

• Centering Rings

• Installation Instructions

• Warranty Info

• ALTA License Plate Frame

• ALTA Stickers