knock counts in one cylinder

[curtmgulla]

2013 zl1 have a issues with random knock counts in cylinder 5 @wot... changed plug.. moved wire.. gonna swap coil this afternoon.. header is not touching anything but I am getting knock on that cylinder.. ideas it could be false knock but id like to make sure ... no misfires no problems anywere else around 3.5-4.5k I see it and sometimes around 5k few counts cylinder #5

[Jay@HAP]

you know, whats been done to the car would be helpful..... maybe even a tune or a log too.

[curtmgulla]

Sorry 13 zl1.A6 2.45 upper Pulley. Tsp headers no cats. K&n carbon fiber intake. Corsa exhaust. Tr7ix plugs. Id1050x


injectors.

[curtmgulla]

zl1 jan 31st 12 noon 55f temp outside.hpl here is log

[curtmgulla]

bump

[VFL77]

here is log

I don't see anything special with #5. I see a few cylinders reporting knock at the 04:59 timeframe.
IAT2 isn't displaying what I'd expect (post adder air temp).
Have you dropped timing and/or added fuel to see if the issue goes away or behaves differently?.

[asteggall]

Just going off the STFT's that thing is probably running lean as hell up top. Got the tune file?