Using your BC Racing BR series coilovers is quite simple. First, install the coilovers following the included instructions. You can adjust the ride height to your liking by using the adjustable feature. To adjust the damping, turn the easily accessible adjustment knobs. There are 30 levels of damping adjustment, so you can find the perfect setting for your driving. When it comes to maintenance, check the coilovers regularly for any signs of damage or leaks. If you notice any issues, contact us right away as the coilovers are completely rebuildable and individual parts can be purchased. Keep in mind that custom kits take up to 8+ weeks to ship from the order date. And if you have the optional rear extenders, use them to change the dampening range without the hassle of removing the rear seat.