Wow wow and WOW..
I used this to replace another well known exhaust system as I wanted black tips. I can tell you this exhaust really makes my truck sound like a TRUCK lol. It's quiet when cruising, yet if that ONE pulls along side of you, you can let him know you aren't to be trifled with. My only comment that wasn't a 5 start is the cost vs performance ratio. You could do another system cheaper in my opinion and still achieve the same effects.
Purchased Flowmaster Super 44 for my truck. Had a shop install to ensure a good fit with no leak. What a difference it made. Big difference from stock to the new sound. Has a nice tone on cruise and a nice bark when taking off. Muffler was ordered for specific vehicle making install easier.