Hey mate,
Chassis feels alot stiffer with next to no body roll. When jaking the car up from the rear tow hook it raises evenly. I only do grip (4wd) but out on track steering is very responsive. I had to drill holes to mount it in. mounting points are on the rear wheel arches, right behind the drivers seat near the door and in the front on the floor. I just leave my back seat out, roof lining stays in, sunvisors come out.
Cheers Luke