Fitment Information 2009, 2010, 2011, 2012, 2013 Infiniti G37 Sedan 2009, 2010, 2012, 2013 Infiniti G37 Coupe AWD ONLY Specs & Features Lowers 1.6" Front and 1.6" Rear Includes all 4 lowering springs Works with factory shocks or aftermarket shocks that fit stock springs Product Description Godspeed Project's performance lowering springs are cold wound on coil winding machine with SAE 9254 spring wire material, one of the ideal materials available. Manufacturing Process involves steel material going through heat treatments before winding into coils, these are necessary steps in order to deliver an outstanding ultra high tensile strength and provide equal spring rates that are extremely durable in order to resist premature “sagging”. The end result of this process generates a spring that specifically offers improved vehicle handling and response capabilities while maintaining a very  smooth yet comfortable ride experience. Each spring has  been carefully precision tested and inspected in order to provide outstanding handling, response, control and balance throughout the suspension of your vehicle. These quality made performance lowering springs designed to work with OEM shocks and offer a generous drop to your vehicle while remaining at a comfortable daily ride height in order to avoid bottoming-out and clearance issues. Not only lowering your vehicle will improve vehicle handling, will also enhance overall appearance. Redline360 is an authorized GodSpeed dealer and sells only new and genuine GodSpeed products