RS-R 03-09 Nissan 350Z (Z33) Sports-i Coilovers

If you're looking to dial in the suspension on your 2003-2009 Nissan 350Z for track days or spirited street driving, the RS-R Sports-i coilovers are a solid option. These are designed to give you a lot of control over how your car handles, allowing you to fine-tune both the ride height and the damping characteristics to match your driving style and the conditions you'll be facing. They replace your factory struts and springs, offering a significant upgrade in performance and adjustability.

RS-R has built these Sports-i coilovers with a focus on performance and durability. They feature a monotube shock absorber design, which generally offers better damping control and heat dissipation compared to twin-tube designs, especially under demanding conditions. The damping force is adjustable in 36 levels, giving you a wide range to work with, from a comfortable street setting to a firm track setup. You can also adjust the ride height independently of the spring preload, allowing you to set your desired stance without negatively impacting suspension travel or spring rate. The front upper mounts are pillowball bearings, which help transmit steering inputs more directly to the chassis for improved feedback, while the rear mounts are often rubber or a similar material to help isolate some road noise.

When installing these coilovers, you'll be able to set your car's ride height to your preference. The spring rates are chosen by RS-R to provide a noticeable improvement in handling responsiveness while still maintaining a reasonable level of comfort for daily driving. It's a good idea to have your alignment checked and adjusted after installing coilovers to ensure optimal tire wear and handling characteristics. These coilovers are a complete package, designed to be a direct replacement for your stock suspension components.