Sounds like something else is inhibiting your 2016. I remember when I installed my Del's on a 2004. It definitely produced a torque increase in the mid-range,,, maybe 4 ft/lbs,,, which helped smooth out the sag in torque curve. I kept the long style baffles in,,, and did not switch to a K&N (even though I own one). I had a bit of re-burn (popping),, but not much. So the weight decrease and added torx provided a very useable increase,,, but not "huge". Comparing my 2004 to my newer 2012, it appears that the 2012 runs a good bit leaner,, for improved emissions and fuel economy. Del's would tend lean out the 2012 even more,,, resulting in more re-burn, and possibly surging. What is the mileage on your 2016,,, and have you done a compression test ?? I trust the 5-way is clear,,, and a TBS was done at some point ?? I have a suggestion to make,,, but would like to hear your answers first. A 2016 should definitely not feel under-powered. I will also read the prior posts in this thread,,, after dinner,,,, cheers,, CAt'