Here's an initial update, I'm sure that I am getting better mpg but not sure how much yet because I've only gone one tank and drove the car with mix mild and hard driving but still got 41mpg which I normally get only when driving slow-mild style type of driving. I was able to pull 377miles in a tank and refilled with 9.026 gallons. Now with this second tank I will try to get 485-486miles in a tank riding 55-60mph which was my record in ECO Fit forum. I was able to achieve 45.xxmpg in a tank with a lot of effort in the process like running 50-55mph(or slower) in a 55mph road, FAS and P&G. I think 486 miles a tank is now possible without putting too much effort but I maybe wrong.
The only thing is that it is hard to keep myself from flooring the gas pedal to hear the sweet sound of the SSRI

, power gain is noticeable with just adding the intake but not much. I will keep this thread posted with my test results.