Anti-Sway Bar | Rear 25mm • F55/F56/F57/F65/F66/F67

Anti-Sway Bar | Rear 25mm • Mini Cooper Base, S, JCW

$419.00
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Description

Drivers familiar with chassis tuning on modern MINI platforms know that a sway bar upgrade is one of the most effective ways to sharpen handling, and the NM Engineering GT Sway Bar delivers exactly that. Designed specifically for the MINI Gen2 F55/F56/F57 and Gen3 F65/F66/F67 chassis, this bar significantly reduces body roll while improving steering response, balance, and overall driver confidence.

On these MINIs, the 25mm Sway Bar enhances cornering stability in a way that rivals — and in some cases exceeds — the perceived benefit of lowering springs or coilovers alone. The result is a more planted feel through corners, improved rotation, and a chassis that remains predictable and composed under aggressive driving conditions.

Engineered to work seamlessly with the factory suspension geometry, the NM Engineering 25mm Sway Bar provides a clear performance advantage for spirited street driving, canyon roads, and occasional track use — all without compromising daily drivability.

Bar Option Setting 1 (lbs./in.) Increase over Base Setting 2 (lbs./in.) Increase over Base
OEM Base 19mm 182 — — —
OEM Sport/JCW 21mm 253 39% — —
NM Eng. 25mm Tubular 510 180% 642 252%


FEATURES

  • Mandrel-bent chromoly heavy-wall tubing for consistent diameter and precise torsional response
  • 25mm heavy-wall construction for increased rigidity compared to standard 25mm bars
  • Forged end sections with two adjustable mounting points (not welded plate ends)
  • Billet 7075-T6 aerospace-grade aluminum sway bar clamps
  • 90° zerk fittings for easy re-greasing
  • Graphite-impregnated urethane bushings for durability and smooth operation
  • Gloss blue powder-coat finish
  • 3-way adjustable preload to fine-tune handling balance

FITMENT

  • MINI UKL Cooper F55/F56/F57/F65/F66/F67 Mini Cooper Base, S, JCW

NOTES

  • Designed and engineered in Camarillo, California
  • Made in the USA
  • NM Engineering Rear Sway Bar Link Kit is strongly recommended for optimal performance and durability when used with this Sway Bar

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Testimonials

Had my 21 JCW DME cloned and tuned by Abel. excellent support throughout the entire process from beginning to completion. The car drives well with linear torque in every gear! Sure beats femto unlock.

Fred

Abel was quick to help me out and answer my questions via Email. I made an appointment with Abel to unlock and tune my 23 S. He showed up happy to help, and we got it knocked out in a few hours. It was a night and day difference, and I highly recommend this company to all mini Gen3 owners.

Canaan

Modded Mini developed new upgrades for our 2021 Mini GP3 race cars. At the first race of the season, we experienced some technical difficulties related to fuel. Abel was able to figure out and fix the issue in no time “ 20 min “ over the computer at the track. He knows we will be racing over the weekend, and his dedication and standing behind his product speak for themselves. Our team achieved P1 and P2!

Mira

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