I've done this mod quite a while ago and I defintely recommend it. Compared to stock, the car sounds much louder and sportier. I did the airfilter delete and resonator delete. Replaced the resonators with an x-pipe and kept the stock tips. It dramatically increased the sound but not loud as an aftermarket muffler. Always wanted to change the mufflers to aftermarket to get extra sound but still satified with the resonators delete.