SuperPro Control Arm Lower Inner Rear Bush Kit Double Offset Superpro SPF3867K SPRO Front Control Arm Lower Rear Bushing Kit SuperPro Control Arm Lower fits rear Bush Kit (Mounting Kit control Superpro Rear Lower Control Arm Inner Forward Bushing SPF4736K. Rear Position, Front Lower Control Arm Bushings by SuperPro Made to connect your steering knuckle and wheel assembly to the rest of your steering system, control arms are vital to, funny enough, controlling your vehicle. Control arm bushings are similarly important. Designed to protect the connections between the control arm and it's mounting points, control arm bushings determine how well your control arm actually performs. OE control arm bushings are commonly made of soft rubber, this rubber is good at reducing NVH, but it doesn't last long. The good news is SuperPro has what you need. SuperPro crafts all of their control arm bushings with polyurethane, a material much more durable than rubber. Polyurethane bushings, with their increased durability, are commonly associated with increased NVH. SuperPro realized this and has gone to great lengths to offer the best of both worlds. Utilizing polyurethane bushings to enhance performance, and carefully researching designs to minimize NVH, SuperPro has managed to form some of the best bushings available for those looking to enhance their control without affecting ride quality. SuperPro's use of knurling on their bushings is another result of careful research. This knurling allows grease to stay on the bushings for much longer, reducing the amount of maintenance you have to do. Features Enhances your vehicles handling and performance Unaffected by extreme temperatures, oils, water or coolant A superior alternative to rubber: providing higher quality, quieter, longer lasting bushings Made with SuperPro's proprietary engineering grade polyurethane formula Benefits Corrected or maintained steering geometry Better handling Increased safety Improved tire wear Improved fuel efficiency Enhanced performance Applications 2013 2018 Mazda 3 2013 2018 Mazda 6 2012 2017 Mazda CX 5 What's In The Box? 2 Bushings References Installation Instructions Warranty SuperPro Lifetime Warranty