Dollar for Dollar, You can't Beat the Performance
I had a shop install the Cat Back American Thunder system on my RAM, 5.7 Hemi. This was a "replacement" for a system that came with the truck when purchased used. My son and I can not get over the marked difference in sound and performance with this new system. It is like driving a new truck. The engine runs smoother and operates like it has another 40 horses under the hood! At idle, the sound is barely noticeable in the cabin. Acceleration is the sound of new power. Great purchase!!!
Too much drone
This system came recommended by 2 local shops as a quality inexpensive replacement to old factory system without drone. In the month I've had it, I've spent a lot of time tweaking to try to reduce the 2k rpm half throttle drone without any real luck. Full throttle sounds good and cruising at 70 is in the sweet spot but accelerating at part throttle through about 2000 rpm yields a lot of unenjoyable drone in the cab and no real redeeming performance exhaust note. Very easy install. Looks nice.