Fox 3.0 Coilovers from AccuTune OFFROAD come pre-tuned for your ride, your terrain and your driving style. Fox 3.0 Coilovers are great for use in combination with a big bypass in order to provide cooling for those long desert runs. Fox 3.0 Internal Bypass Coilover Shocks are great for single shock vehicles looking to get the best performance. The Fox 3.0 Internal Bypass Coilovers work just like a 3-tube bypass with three compression and three rebound zones for optimal performance. All 3.0 Internal Bypass shocks should be purchased with a DSC Adjuster to allow for low speed compression adjustment. Get to the winners circle with Fox 3.0 Coilovers and AccuTune Valving.