My 05 LS had no KR, but it only had limited mods. Did you have KR before you started modding?
Didn't have a scanner then.
With the Wizaired, catback, and DP I was getting KR on the stock tune. I've worked out my tune so I no longer knock except for in PE which I'm working on now.
2004 Impala LS - got some mods sold!!!
2009 Subaru Impreza WRX STI
NAIOA moderator Still Imp'n, just in a different Imp.