I have a guy that will be adjusting my tune/scaning for kr before i even pull it out of the garage again,
KR is something that happens under load, it's not something you can accurately scan for in the garage.
It's really not that hard guys... This is straight from ZZperformance.com in the listing for their MPS
04-05 GTP or Comp G & 06 GT supercharged
3.8 pulley totally stock car
3.6 pulley Colder Tstat & spark plugs, downpipe, Cold air intake (still could have KR)
3.4 pulley all of the above plus a VS cam, or SS intercooler
3.3 pulley 3.4 mods and a XP cam
3.2 pulley 3.4 mods and a fullsize intercooler or an SS ic and a VS cam.
Anything smaller than a 3.0 pulley will require a camshaft, headers, intercooler & injectors.
*Cars with open cone intakes should run one size larger pulley.
**All recommendations assume 92 octane or higher