So one of my best friends fathers just bought an 03 extended cab prerunner and the original owner included a TRD Exhaust system with the truck. The story is the exhaust was originally on the truck but the owner took it and other mods off of the truck and made it back stock before he sold it. The exhaust was included for a mere 150 bucks but my friends dad decided that he doesnt want to install the exhaust on the truck and he told me I could buy it for 150 which is a killer deal...but I currently have a super 40 flowmaster (single in/out) on my truck and I think it has a nice tone to it. How does the flowmaster muffler compare to the TRD exhaust system? Which one has the deepest tone and which one is louder? I've gotten a lot of compliments on the sound of my truck but for 150 bucks, its kind of hard to pass it up knowing that the TRD could sound better than the flowmaster. I've heard a clip of the TRD and by comparing it to my truck, it sounds about the same. Can anyone help me out here?