If you want the cheap budget approach.
Replace the stock resonator (and it's 2" I.D.) with a 2.5" unit. Then cut out both rear mufflers. (I.E. replace with straight pipe)
No drone. Good sound. Good performance on a budget.
Next step is to custom roll your own exhaust...
Final would be shelling out $550+ for an aftermarket 2.25" cat-back...
