i'll be ordering Prokits for my E30 soon...to go with my Bilstein HDs (which are probably on some ship somewhere in the world :| )
Think basically, Sportline are for more hardcore drivers...
Pro-kits are good enuff for me... (abt. 40mm drop???) - Sportlines probably got more problem going over road humps i guess)
anyway..here's some stuff on the Eibachs from Eibach web:
http://eibach.com/cgi-bin/htmlos.exe/001039.1.670758995300011629
Pro-Kit
* High Performance Handling
* Lower Center of Gravity–Lowers vehicle 1.0"-1.5"
* Progressive Spring Design
* Excellent Ride Quality
* Million Mile Warranty
* Part of the Eibach Pro-System
The 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 car’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.
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.
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Sportline
* Extreme Performance Meets
Extreme Style
* Race-Car Like Handling
* Lowers Vehicle 1.7" - 2.3"
* Progressive Spring Design
* Excellent Ride Quality
* Part of the Eibach Sport-System
* Million Mile Warranty
Eibach Sportline is the extreme-performance spring set created for the extreme enthusiast—the one who craves a race-car attitude for maximum street performance—with the lowest possible drop, but with the exceptional ride quality you expect from Eibach.
Engineered with the same care as our Pro-Kit springs, Eibach Sportline springs achieve legendary handling by aggressively lowering your car’s center of gravity, using our precision—engineered progressive spring rates.
By radically lowering your car’s center of gravity, our Sportline springs dramatically reduce squat during acceleration, body roll in corners and nose-dive under braking. By using our proprietary, progressive spring design, our Sportline springs provide the ultimate balance between high performance, extreme lowering and comfortable ride quality. When combined with today’s wild 18", 19" or 20" wheels and tires, the result is a car that handles just as white-hot as it looks.
