Kr ?

[SPFSkyline]

I installed my new SURE testpipe yesterday and loaded Cobb Stage 2 map ( I realize dp is "required"). I've just been driving nice and monitoring LTFT, FP, AFR, ect. Everything is fine with that. My question is, I get KR only when starting in first gear. It gets up to 3.5, 6.0, 7.0. Never happens after shifting, in any other gear, different throttle positions, etc. Seems to be worse if I allow the engine to bog a little at take off (I assume because it leans out?). If I just let off the gas and gas again no KR in first. What would be the reasoning for this? Simply have not allowed it to relearn trims? I attached a log, it is long and just me driving around, but you can see the KR as I take off, shift and gone.