Ok I have a 2006 gxp with custom exhaust. I have a slp loudmouth 2 muffler in place of the resonator and straight pipe the rest to quad tips. I love the sound and get a lot of compliments. But, I am getting tired of the drone. I test drove another gxp the other day at the auction and it had the magnaflow 16726 kit and I honestly loved it. There was no drone and it still have a nice tone to it when I floored it. But I don't want to drop $700 on an exhaust like that. Have any of you done custom exhaust and gotten similar results? I was thinking of getting a resonator and 2 mufflers by magnaflow but still undecided.