Eibach has been engineering springs in Bilstein, Germany since 1951. Their steel is proprietary, cold-wound on CNC machines, and shot-peened for fatigue resistance. That matters because a spring that sags after two years is a spring you replace twice.
The Pro-Kit line drops most cars 0.8 to 1.2 inches on progressive-rate springs. Progressive rate means the spring is softer over small bumps and firms up under load. Daily drivers stay comfortable. Hard cornering stays flat. The Sportline kit goes lower (1.2 to 2.0 inches, depending on chassis) with a stiffer rate for people who want sharper turn-in and less body roll.
Anti-Roll Kits are where Eibach gets interesting. Thicker front and rear sway bars reduce body roll without changing ride height or spring rate. On an ND Miata or GR86, an Eibach rear sway bar alone changes the car's rotation mid-corner. Pair that with a Pro-Kit and you have a suspension that works together instead of fighting itself.
For the full-stack crowd, the Pro-Plus package bundles Pro-Kit springs with front and rear Anti-Roll bars. One box, matched rates, no guesswork. The Multi-Pro-R1 and Multi-Pro-R2 coilover systems go further with adjustable damping and ride height for track-focused builds.
Eibach springs are OE supplier parts on cars like the Ford Mustang GT500 and Porsche GT3. That engineering filters down to every aftermarket kit they sell. You get consistent spring rates, tight tolerances, and steel that holds up season after season.
We stock Pro-Kit, Sportline, Anti-Roll Kits, and Pro-Plus packages. If you need help matching Eibach parts to your platform, reach out. We'll point you to the right setup.
