on a serious note, if you wanna fit them then get ur head under the car, look at the cars jacking points, these are marked on the side skirts on a furio / vtr / vts with an arrow. Ull notice that there is a metal ledge from jacking point at the rear to the front. Drill holes in this ledge and use CABLE TIES to secure the tubes. Do not use brackets as they snap and your tubes will smash on the floor.
as for front and back look under the bumpers and there is a small ledge of both aswell, cable tie them in place.
Another word of warning is, DO NOT PUT THE TRANSFORMER (IF YOUR KIT HAS 1) UNDER THE BONNET AS IT SAYS SO IN THE INSTRUCTIONS. Some1 i know did, it stopped working 3 times due to getting wet untill it eventually caught fire!!!!!! So locate it in the car somewhere.
Hope this helps