I use the Pace full width front mount and it's excellent. I have no cutout in the bumper as personally I find the look a bit too in yer face (no offence intended).

As for which way to go with it only you can decide. I would let how teh car is used determine how you tune it. If you use the car daily mildly tune it to about the 180bhp mark if you only use it as a toy go mad on it. My mates face is a picture in his WRX as my "crappy Ford" in his words, leaves him for dead