ap2 front bumper & headlights bolt on ap1?
 

headlights and front bumper, is it straight bolt on ap1?

I know the bumper isn't, the holes where it screws onto the undertray are different. Not sure about the headlights though.

headlights are a bolt on. with the bumper you need Ap2 fender liners. i believe also Ap2 undertray. do a search and they'll should be tons of answers.

If you plan on using the AP1 ballast you will have to modify the AP2 headlight housing to get it fit, or buy the AP2 ballast. For the AP2 bumper you need to grind off the corners of the AP1 bumper support. You will also need the AP2 splash shield or you can modify your AP1's splash shield like I did.