HR SPORT SPRING Experience the HR difference today. 1) Suspension is one of the most important factors in determining your vehicle’s day-to-day drivability. The first step in suspension tuning is to upgrade your vehicle’s stock springs. 2) Upgrading your suspension components will ensure that your vehicle has improved handling and reduced body roll. HR springs have superb ride comfort and increased driving convenience. 3) HR Special Springs are high quality products—they will not set or sag, they are designed and manufactured to be strong, resilient, and more durable than other automotive coil springs. 4) All HR springs are crafted from a special spring steel to ensure premium quality and performance. HR Springs are shot-peened to increase their life by more than 200%. 5) All production is completed in-house so product quality is ensured. 6) Each spring is 100% tested before leaving HR Hyper Racing.