^^^ To my eye, that doesn't look like a 3" rear lift because it should still have the forward rake if lifted 3" front and rear...but maybe it's the camera angle?? AFAIK, the only lift available in that size is the Traxda 3.5" which requires their front axle relocation kit. A 3" rear lift would require adjustable ball joints to get camber back in spec. As a total package, the 3" front/rear lift is a ballsy modification for a dealer to pre-install, IMO.
Jsport offers only a 1.5" front lift and a 0.75" rear lift for the 2017-2020 RL. They have an affiliation with Honda Racing and a network of registered Honda dealerships, some of which pre-install Jsport accessories on RLs, Pilots, Passports and CR-Vs before sale for added profit. Other "authorized dealers" will install Jsport accessories after the sale. Jsport promotes their products as maintaining Honda factory specs and vehicle warranty. Obviously, the Jsport components themselves would carry no Honda warranty, and some factory specs will be modified by lifting the vehicle. It has been implied that the modest lifts/leveling kits developed and tested by Jsport for the RL fall within the vehicle's design tolerances for safety and performance, but there is no proof of this and the owner accepts all risks of modifying the vehicle, including any associated safety system failures.
Buyers should expect to sign a liability waiver when they purchase a dealer-modified (lifted) Ridgeline. IMHO, all it would take would be one successful driver or passenger injury lawsuit from a rollover accident to upend this after-market business model. I sincerely hope that does not happen, but as we all know, there are no guarantees in life. YMMV and to each his own.