Cobb Tuning Sport Springs - BMW 135i E82/E87/E88 05-13The COBB 2005 2013 BMW 1 Series Sport Spring Kit is the best first step to a better handling and better looking car. The 1. 2" drop front and rear lowers the car's center of gravity to improve cornering speed and response while also minimizing wheel gap for a sportier look. This aggressive stance reduces squat and wheel hop under hard acceleration. Spring rates of 148 lbs in front and 457 lbs in rear provide the sport feel without being unnecessarily