They have a side mount, its located right in front of the passenger side tire. They are good for about 300 but thats pushing it they get heatsoaked pretty quickly. But you can upgrade the supra sidemount you just have to flip an end tank around. I upgraded to the front mount just recently. with the evo 3 turbo it got a lot hotter a lot quicker. Also I have bigger turbo plans in the near future. In fact as soon as it gets its tranny rebuild.