Hey, i got a resonator delete and its nothing really special. It's a little louder from the outside and only when you're standing at the back of the car, but from inside the car there is no difference to the sound. If you want loud and cheap I would just get a muffler delete. I can tell you, resonator + muffler delete is F***ING loud and raspy when over 4000RPM, also lots of drone in the cabin HAHA but all fun at the end of the day :))
But then again, I would say save your money and just get the intake because it gives you a WAY better sound (but only when you're over 3500 RPM and more than 1/2 throttle, if you slowly creep up the RPM's you most likely wont be able to hear it) The intake gives the car a nice growl when you're punching it, but then its quite when youre just "normal" driving through traffic and what not. Also, if you really want to do the resonator delete, any exhaust shop can do it cos its just cutting the resonator out and replacing it with a section of piping.
Hope this helped you. Also, I'm going to be selling my Intake soon let me know if you're interested, I live in Melbourne but my 250 is in Sydney but will be sold within the next few weeks so gonna part out some stuff i have