So I added swifts springs. Rides really nice. Never had these before. Really glad I made the switch. So being custom built please check the preload before Installing. Whoever built my coilovers I’m assuming was many paying attention and didn’t tighten one side enough the same. then again it does say in the instructions to double check. Overall I’m very happy with these. Highly recommend!! 8.5/10 in my book. Very happy costumer.