ISR Performance Pro Series Coilovers - Mazda RX7 FC3S

If you're looking to dial in the suspension on your Mazda RX7 FC3S for track days or spirited street driving, the ISR Performance Pro Series Coilovers are a solid option. These are designed to give you a lot of control over how your car handles, letting you fine-tune everything from ride height to how stiff the suspension feels. Getting the setup just right can make a big difference in cornering grip and overall driver confidence.

What sets these coilovers apart is the attention to detail in their construction and adjustability. You get independent adjustment for both ride height and damping, meaning you can set the car's stance without affecting how the suspension reacts to bumps, and vice-versa. The damping adjustment offers a wide range, allowing you to go from a more comfortable street setting to a firm, track-focused setup. They use a robust construction with quality internal components to handle the stresses of performance driving. The spring rates are chosen to offer a good balance between performance and streetability, though you can always swap them out if you have very specific needs. Installation involves replacing your stock struts and springs, and it's a good idea to get a professional alignment done after installation to ensure everything is set up correctly.

When you're installing these, remember that ride height and damping adjustments are best made with the vehicle off the ground, but final adjustments and testing should be done with the car on the ground. It's also worth noting that while these offer a significant improvement in handling, they will change the ride quality compared to stock. Many owners find that the increased control and adjustability are well worth the trade-off for a firmer ride. If you're serious about getting the most out of your FC3S's handling, these coilovers give you the tools to do it.