I just tuned my car this past week after installing an UP, DP, CBE, and flashing stage 2 with COBB AP. I have been monitoring knock to see how the car is holding up to the tune and it has been registering FKL and I can feel it in the pedal. The odd thing is that it happens under light load and it seems to go away under decent acceleration. I logged my drive to work and did 3 separate pulls on the highway in 3rd gear. I tried to sort out the log and categorize what part of the drive it was (idle warm up, highway cruise, sport mode, pull #1,2,3, cool down) and I highlighted the 3 pulls. I didn't go full open apparently until the 3rd pull so I hope that doesn't make this useless.
Car is stock besides:
2006 STI UP
COBB Bellmouth High Flow Catted DP
Borla SST CBE
93 Octane Stage 2 flash (Cobb Access-port)
Log (google docs):
Any help would be greatly appreciated!