Upgrade your OS Giken Differential with this Tune.
BMW E39 Performance Parts & Upgrades
- Braking
- Engine / Drivetrain
- Essentials
- Exhaust
- Exterior
- Interior
- Lighting
- Racing Safety Accessories
- Software / Tuning
- Suspension
- Wheels
Designed for high-powered street cars while capable enough to handle the track. Conservatively rated at 495ft/lbs.
Designed for dedicated drag or drift cars. Conservatively rated at 500ft/lbs.
Designed for drag or drift cars that see limited street use. Conservatively rated at 420ft/lbs.
Designed for dedicated track cars. Conservatively rated at 550ft/lbs.
Designed for dedicated track cars. Conservatively rated at 425ft/lbs.
Designed for drag or drift cars that see limited street use. Conservatively rated at 450ft/lbs.
The perfect gift for every car enthusiast any time of the year
Designed for drag or drift cars that see limited street use. Rated at 550ft/lbs.
Upgraded clutch kit for your BMW - rated for torque up to 671 ft-lbs
Replacement Rear Brake Disc Pair from Zimmerman
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This product was last offered at the strikethrough price on
05-08-2026
For factory braking performance
Superior handling without compromising ride quality
Not Compatible with Air/Electronic Suspension
For touring models only
This product was last offered at the strikethrough price on
02-09-2026
Designed for dedicated track vehicles.
For moderately modified vehicles or performance oriented driving styles.
For moderately modified vehicles or performance oriented driving styles.