the bumper would fit straight on...if you had no headlights
best way to fit the front is to remove the headlights,trial fit the bumper then you should be able to see how much to trim of(only around the lights,you dont need to cut around the grill,that sits nicely on top of the bumper)take the black trim off so the bumper is easyier to cut,then cut the trim bit after.
i think on the back bumper i had to cut 2 tabs off from the inside of the bumper,but you will notice them when you try to fit it,they are right in the corner where bumper meets wheel arch

if the car aint lowered 16's with 195/45 tyres are the biggest that will go straight on,thats what ive got