Lowered cars with non-RS wheel carriers suffer from bump steer and will benefit from bump geometry correction.

Bump steer is a change in toe due to vertical movement of the wheel, such as when driving over a bump. The toe change causes the car to turn, and the driver needs to constantly correct for this to maintain a steady trajectory. This makes the car a handful to drive, especially over bumpy road surfaces.

Bump correction is achieved by moving the tie rod end pivot about 10mm closer to the steering knuckle as compared to the stock tie rod end. This changes the angle of the tie rod to produce the bump geometry correction.

Application:

• '89-'94 Porsche 964
• '95-'98 Porsche 993