H&R 04-06 BMW 545i E60 Sport Spring (w/o Self Leveling) 2003-infiniti-q45-esi5267512 Constructed out of cast A356-T6

Constructed out of cast A356-T6 aluminum and uses a proprietary internal bolt design to help increase the flow and provide a solid seal void of leaks or deformaties

and M4 follows BMW's tried and true formula of six cylinders in a row sending power to the back wheels for maximum tire-torturing fun

Many prototypes entered

and includes our magnetic drain plug to collect any metallic debris in your cooling system

banging off the limiter

H&R 04-06 BMW 545i E60 Sport Spring (w/o Self Leveling) 2003-infiniti-q45-esi5267512 Constructed out of cast A356-T6Sport 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