H&R 05-11 BMW 645Ci Convertible/650i Convertible E64 Sport Spring 2009-infiniti-m35-esi7233183 No Modifications needed

No Modifications needed

3" aluminum induction tube that delivers high volumes of clean

You must have adjustable control arms in order to adjust camber and toe after eliminating the stock eccentric bolts

6 Liter T-10D

H&R 05-11 BMW 645Ci Convertible/650i Convertible E64 Sport Spring 2009-infiniti-m35-esi7233183 No Modifications neededSport Spring kits are H&R's number one selling product. Enhance the look of your vehicle with a reduced fender well gap. H&R'sport Springs lower the vehicle's center of gravity and reduce body roll for better handling. The progressive spring rate design provides superb ride quality and comfort. A lower wind resistance signature will make the vehicle more streamlined and improve gas mileage. If you are only looking to improve one part of your vehicle's