Talking with Cycle Solutions and having them install a ThunderMax iRide system on the rear of my 2016 Street Glide. I have had one before and I am ok with that. Chris (the owner) strongly suggests upgrading the front end at the same time. He would install the spring kit (not sure who makes it) I am sure the kit is a top quality product. He doesn't deal with cheap stuff. Not sure they are worth the $1,500 installed price. Do these front end upgrades really make a big difference over stock?