I took these off my sons G35b because he join the Military. They are Sport Mach Swift Lowering Springs, Front and Rear, Part No: 4N014, Will fit NISSAN 350Z and INFINITI G35 Coupe 03 plus. he had them on for 6 months, they still look new have the orignal box and packaging. I am selling for $150.00 any interest, local pickup only