GOT THE CAR BACK.
Let me start off with the fact that the stutter is nowhere to be seen at all.
This pretty much confirms it without a single shadow of a doubt.
With injectors 1 and 3 being replaced recently under warranty. The stutter was being caused by either one or both.
Once I got the car back today. I put the tuned ECU back in.
I also put a container of Royal Purple max boost into the tank just for fun with 10 gallons of 93. So the octane of the tank is sitting around 96.
She is reving out clean as hell and I really could not be happier with the addition of the SXTH downpipe and the LAP3 tune. It really is everything it was supposed to be from the beginning. Last bolt on for the car will be the charge pipe upgrade. LET'S GO!