Have you data logged at the track yet? It's possible that the ecu is pulling timing in 3rd and 4th. The more load there is on an engine the more likely it is to knock. So it could be real world conditions that induce knock at the track. First and second gears don't load the engine nearly as much as 3rd and 4th.
Stock 2016 EB
2013 GT Deep Impact Blue W/ Brembos
FRPP GT500 axle back, MGW race spec, Koni yellows, Eibach Pro Kit, GC camber plates, BMR LCA & relocation brackets, MRR-M350 19X10 Piano Black Wheels.
2014 Smart for Two.
1996 Mitsubishi Eclipse GSX. More mods than I can remember.