No, you can run up to E15 on a pump gas tune which is usually the ethanol concentration of 1 gallon of E85 mixed with a full tank of pump gas. Hell, you don't even need to run a flex fuel kit even if you decide to do an ethanol blend tune either but it will be a pain in the ass.
The math is fairly simple the fact it is 1 gallon of e85 to 1 full tank. If you end up topping off with half a tank then put half a gallon of e85 and the rest pump gas, topping off with a quarter of a tank left then put three quarters of a gallon of e85 then the rest pump gas.
Probably should get a speed calibrator. Even if the 10-12% difference on the 2020 transmission isn't much to worry about for you, your mileage will rack up 10-12% faster for no reason.
assuming only roll race duties and 1/4 mile, pretty reliable. Now if you do road racing which includes downshift revmatching, engine braking and basically high revs the whole race event then no.
I'm assuming you mean the 4 bar MAP sensors. At that boost level it would be wise to get the 4 bar MAP sensor. There are times the car will overboost like 1 or 2 psi more and that could put you on limp mode. Happened to a friend of mine, he was tuned for 29 psi gtx2867r and his boost spiked for...
Unless they come up with a different flex fuel kit than what's on the market, this would also mean no flex fuel since it requires secondary o2 disables.
NGK 95112 / ILZKAR8H8S that is originally used for the non Si 1.5t is the same one used for the k20c1 FK8
NGK 95660 / ILZKAR8J8SY is for the Civic Si, Accord 1.5t, Accord 2.0t, RDX 2.0t
In that sense, if you are using OEM plugs on your non Si 1.5t then you are using OEM Type R plugs.
New to the platform but Vargas and Pure Turbos have been making hybrid/drop ins way before this platform. This is why I went with Pure back when the W1 and Pure450 were the only options.
That crack is cosmetic even my Pure450 had that when I took it off but it worked fine. The problem with the W1 is the thrust washer failure which eventually makes excessive shaft play and start shedding turbine wheels to pieces