Update after groove installed...
Noticeably less emissions coming from tail pipe. I hope to soon have a gas analyzer to help visualize the results.
The throttle response is nothing short of amazing, barely touch the gas pedal now and the truck wants to lunge forward. I did notice the 0 - 60 acceleration seemed much smoother and quicker.
1st tank of gas not completely ran through yet I will keep you posted on the results...