Well, we tow both a 2002 VW TDI Jetta 5 speed manual transmission and a 2004 Explorer Limited. The Exploder needs a brake system but I don't think the Jetta does due to weighing around 2,350 pounds. Since I had to get a braking system for the Exploder, I got a Roadmaster Even Brake System. My Safari does not have Air Brakes, just hydraulics, so "Air Based Systems" were out. For the Jetta, I did have to get an optional Jetta brake pedal clamp and a different length pedal rod for the Evan Brake box. Bottom line -- pain in the you know what to setup, so I have only used it twice on the Jetta.