Best way to get 4.5" Lift with no cut?

Hey everyone,

I've been doing some reading and would love to go with the BDS 4.5" kit, but they don't have support for 2018+ yet. Additionally, Im still under warranty and would love to be able to get the 4.5" look I'm after without cutting of the cross member.

Any ideas on how I could achieve this?
Thanks,

 

Believe Fabtec has a 4" kit, no cut of the RCM, I'm on a RC 6" kit and mine isn't cut and would like this kit as well

 

Bds has a kit for 18+ I have it on my 19 it says online that it doesnt but if you call them they will go over it with you and there 18 kit fits our 19s
Also bds doesnt void warranty i even have the 7"