My 2 cents
After installing a Greddy snorkle the car ran hella rich as shown in this datalog. (AFR below 12) WOT 3rd gear pull:
https://datazap.me/u/f1danjvk/log-16...g=0&data=1-4-6
After getting this corrected with a custom tune there is certainly noticeable difference with how the car is pulling in accel. Nothing wrong with intake ducks IMO