Now, on the road...
After some boring few minutes on the street, my luck kind of changed.
In no time, I was presented with the highway and with a little more gas, the FA20 pulled very effortlessly from 100km/h to 150km/h and I had to lift my foot off the gas before I got into real trouble. It felt like there was some "warp factor" put into the FA20 for that brief moment, but in a rather linear fashion. To date, I've had this intake for about a month and I must say that it paid itself off at the mid to high rev range. Look, I'm not saying that this is anything like forced induction but there is a noticeable difference at higher speeds.
Inevitably, with power comes an increase in fuel consumption. With joy of having my right foot on the gas, I got noticeably shittier gas mileage of about 0.5~0.75 km/l less over the past month.