Bike is 2016 RGU stock 103. Finally installed Fullsac DX pipe with their Slash Slip-ons and 2 inch baffles as part of my Stage I upgrade. Also had them install the techmat in the muffler. Install was pretty straight forward. Decibel meter with stock was about 67 at idle and mid 80's at 3k rpm. Now it's about low 90's at idle and saw around 105 at 3k. didn't have a frequency meter to measure the actual depth of tone but it has a nice tone for what I was looking for. Don't think I would have liked the 2.25" any better. hoping to get on the Dyno next week to see the after numbers. Would recommend them.