VF Tuner ECU/TCU Tuning for the GX550

[munkeeboi]

Unfortunately, flashing between tunes cannot be done on the fly. You will need an internet connection, the wiflash module and a laptop each time you want to swap tunes. Depending on how you wire your canbus cable, you may need to pop the side panel open as well

But if all goes according to plan, switching tunes shouldn’t take more than 10 min

 

[Bluegill]

Report from halfway from my trip. Mileage is slighly better +.5 mpg on this trip compared to last. Avg speed was 70 mph on cruise control. Plus side is this better mileage is after installing the westcott lift. Interesting part is that I went 346 miles before the gas light went on. My fill up when it clicked off was 17.6 gallons. Hmmmmm…

What size tires are you running?

I can't believe you are showing 17.1 mpg on the dash and went 346 miles and filled up only 17.6 gallons. Did you have your wife out back pushing the whole time?

 

[munkeeboi]

Running 275/60/20 (~33”)

It’s LA to Sacramento so it was a combo of up and down hill stretches. Trying to understand it myself. I know I topped off before leaving, but not an additional 4-5 gallons.