The front splitter is a work of art. For it to function properly it needs to be mounted to the chassis, not the bumper. Which it has! The air release is also a work of art! I have a design for that too im yet to do a run of to see how they come out! The spoiler though, its top mounts are mounted to a plastic spoiler? :s The point of the rear wing is to push the back of the car down at high speed to gain stability. Not sure I'd recommend pushing down on the tip of a plastic spoiler to try and push the rear of the car down? Just a thought. I would have thought mounting it to metal. Boot/Roof would be a wiser move? Just my 2 cents.