Well if cheap is the way you want to go... then head down to your local muffler shop, and let 'em know that.
To be honest, if your gonna spend a few $$, unless you hate your truck, might as well spend a few more and get a system that is how you want it to sound and @ the same time works well with your engine.
I agree w/Anthony's idea of hunting Youtube for sound clips.
Heres mine:
http://www.youtube.com/watch?v=x2FKYt7nwNE
---------- Post added at 11:00 PM ---------- Previous post was at 10:53 PM ----------
Careful with the turndowns on a SUV. From what I understand turndowns will not pass inspection. I'll find out for sure in June when my inspection is up.
I've also heard that having turndowns isn't good for the undercarriage of the truck, as all the moisture from the exhaust isn't evacuated away from the truck.