Picked up a used AP1 bumper today at a great price. It isn't cosmetically perfect, so I can begin learning to do some body work. It also provides me the opportunity to have a winter and a summer bumper. I'm also very interested because now I can leave my VIN matching bumper stock and do some alterations to the one I just picked up. I would like to create my own lip combining features I like of 2 other lips; the greddy and the Honda S2000 CR lips.
Greddy gracer Lip. I like the wider sides and the narrower waist at the radiator opening.
CR Lip. I like the ingrated canard of sort that will work to create a little more downforce in the front. I have read that these begin working around 40 mph. One issue with this is that the rear of the car has a fair amount of lift at speed. That will make an undertray and rear diffuser more important. It may also create the need for a larger CR style wing.
I plan to do a splitter for the lip as well. This will need to be custom made as well to work correctly with the bumper/lip (aesthetically at least). As an exampl on a stock bumper
The nice thing about constructing the lip myself is that it will be molded into the bumper so the transition from the lip to the bumper should be seamless. Currently, the plan is to shape the lip using US composites expanding foam, covering that with packaging tape, then molding it with either fiberglass or carbonfiber. Right now, I think fiberglass is the smarter choice as it will conform more easily, and is better for sanding and feathering the transitions (from my understanding.).