Perhaps on a Bounder, or other coaches, the stabilizer might improve the handling, but I tried the Safe-T-Plus for a little over 4000 miles, hated it and removed it, a total waste of time and money.
Sure, it makes the coach go straight, as it is designed to do, but the actual steering becomes much stiffer. Maneuvering becomes a full time job on winding and switchback roads as the STP attempts to make the coach go straight. Even lengthly curves became noticeably annoying with the STP.
I also felt that the stabilizer placed too much resistance on the power steering system. I say this because after considerable maneuvering on mountain and coastal winding roads here in California I found that the power steering unit began to make what sounded like fluid cavitation noise when large steering inputs were initiated. At the beginning of a route segment when the steering components were cold there would be no unusual noises, but after the system had warmed to operating temperature, and under continuous large steering inputs, then the fluid noise was constant and very noticeable. At the end of that 4000 mile trip the STP was removed. We are now about to complete another lengthy trip, without the STP, and all steering charactericts have returned to normal with a complete absence of any fluid transfer noise. I definitely feel the STP places way too much resistence and working loads on the power steering system, and may indeed do more harm than good.
One of the delights of owning an Alpine is the outstanding handling characteristics. I do not believe the STP will do anything to enhance these already superb qualities.
2006 Alpine 36' FDTS