Stuttering at full throttle

I have been fighting this for a while now and feel like I'm just throwing parts at it at this point.
2004 3.4L Supercharged, no 7th injector, 145k, previously ran with no issues.
So up to about 90% throttle everything runs fine, good acceleration, shifts smoothly, no issues. Above that 90% point it starts stuttering and will no longer accelerate, let off the throttle a bit and it goes back to normal. No CEL or codes. Attempted to find a vacuum leak with some brakleen but no luck there. Last two things I can think is maybe bad fuel? (though wouldn't that cause issues before WOT?) or a supercharger issue, which I have no experience with.
Last thing I noticed, while moving, in neutral, at WOT stuttering happens and maxes out at 4k, let off the throttle a bit and it redlines. I'm pretty much out of ideas, any help would be awesome.

So far I have replaced:
all 3 belts
Idler pulley (was loose and shaking)
Fuel pump
Fuel Filter
Injectors (found one broken)
Spark Plugs
TPS
MAF


I did have a CEL for the O2 sensors, so i replaced those and the code cleared, I did replace the cats while I was at it since the flange studs were rusted beyond repair. Replaced with some cats from ebay I found referenced in another thread. (pretty cheap, the paint melted off on the first drive)


Also ran an OBD diagnostic and got this screenshot after driving about 5 miles. I don't know what I'm looking at for most of this, never had to troubleshoot this in depth before.