There are so many options with trubendz. Most people like the magnaflow muffer, and choose either w/ or w/o resonators. I have a trubendz magnaflo w/ no resonators and it sounds great at idle and great through the rpm band. (with stock precats/ypipe/cat) to me it gets a little annoying if your at like 3k rpm while on the interstate for an extended period of time though.
Now I am going to have a trubendz ypipe w/ high flow cat, and msds headers in front of my kit, and it is going to be loud.
my advice...
If you are just going to mod the catback part of the exhaust, you don't need resonators (although it would sound even more mellow with)
but if your going to get headers in the future, get the resonated cat-back...
