It's actually a pretty conservative tune. Mainly stock since I got the 04. Started with the basic Webracin tune to eliminate some of the TQ management stuff. Couple tweaks to PE/AFR/RPM/Time as well as a few MAF tunes. I had 42# injectors in there, but went back to stock, along with bringing the IFR table back to stock. I don't have a WB (I know, I know), but my NB O2s have always seemed to stay in the 930-940 range. And it's not burst KR or shift KR either. It's consistent and only when I hit a higher TPS% (i.e. I can run at 60% TPS in boost without KR, but if I get over 90% then it's all over the place).