As an Authorized Eibach dealer, we just received information regarding the release of Eibach's Pro-Kit Lowering Springs for the BMW 550 model F10 chassis and wanted to share the details with you guys.




THE FIRST STEP IN SUSPENSION PERFORMANCE
Eibach PRO-KIT is the perfect answer for most frequently-driven street cars. It's our legendary spring system that dramatically improves both a vehicle's performance and appearance.
PRO-KIT lowers your 550i's center of gravity, reducing squat during acceleration, body roll in corners and excessive nose-dive under braking. When combined with Plus-1 or Plus-2 wheels and tires, the Eibach PRO-KIT is the finishing touch to a winning recipe for performance. PRO-KIT also reduces excessive fender-well clearance, making your car look just as hot as it performs.
Pro-Kit #20113.140 —

• High Performance Handling and Aggressive Good Looks
• Lower Center of Gravity — Lowers 550i 0.8" Front and 0.8" Rear
• Stop Quicker, Corner Faster and get Better MPG
• Excellent Ride Quality
• Million Mile Warranty

Every Eibach PRO-KIT is designed and tested by our suspension engineers and performance driving professionals, to deliver aggressive good looks and high performance handling, without ever compromising safety or ride quality. By using our proprietary, progressive spring design, PRO-KIT provides the ultimate balance to take your passion for driving to a whole new level.

TECHNICAL INFORMATION
FRONT:
OE rate: 40 N/mm (228 lbs/in)
PK rate: 45 N/mm (257 lbs/in)
Tubing: None
Bump-stop: OE
Damper: OE
OE wheel center to fender: 395 mm (15.6 in)
PK wheel center to fender: 375 mm (14.8 in)

Front Alignment:
OE Camber = -0.5 deg (+/-0.4 deg)
OE Caster = n/a (Cross Caster = 0 +/-0.5 deg)
OE Toe = 0.08 deg (+/-0.03 deg)
PK Camber = -0.5 deg
PK Caster = 6.4 deg
PK Toe = 0.08 deg

Approximate installation time: 2.0 hr
Front:


REAR:
OE rate: 23 N/mm (131 lbs/in)
PK rate: 34 N/mm (194 lbs/in)
Tubing: None
Bump-stop: OE
Damper: OE
OE wheel center to fender: 391 mm (15.4 in)
PK wheel center to fender: 371 mm (14.6 in)

Rear Alignment:
OE Camber = -1.8 +/-0.1 deg.
OE Total Toe = 0.12 deg. total +/-0.03
PK Camber = -1.9 deg.
PK Total Toe = 0.12 deg

PRO-KIT can be aligned to OE specifications.

Approximate installation time: 2.0 hr
Rear:

 

Do they make an aftermarket sway bar? Do you have any recommendations on ECU tunes for the 550? Thanks

 

Contact us if you're interested in more information about this cool kit!