Powerflow is VPW and they are a fantastic company but to rubbish ID's is just crazy, it shows a lack of understanding on their behalf.... maybe too many carby guys there.
Out of all the injectors ive used over the years the ID's really do perform as per expectations... im happy to pay extra for matched sets..... my egt results confirm it.
btw 5% of 2200 is a whopping 110cc......