4" PERF SYS W DLSS 2.5 C O & RR DLSS 2021 FORD F150 4WD. 2014 ford f 150 svt raptor esi6382545 All rear systems feature extended DLJD_110170166 All rear systems feature extended length tubular upper and lower link arms with an oversized Trac bar relocation bracket to properly place the axle under the vehicle with zero driveline vibration The mufflers then enhance this sound to the character and volume appropriate for our Touring s 4" F150 lift kit utilizes their proven heavy duty construction and design features found in their 6" systems but with less lift and at a lower price 5 Coilovers that will provide 4" of lift with an outstanding ride quality both on and offroad