Just what I noticed with the GolfTee or any metohods of allwing the actuar valve to be open all the time is gas mileage and a bit of off the line punch . I plugged in my hose again and I'm getting 2 mpgs better gas consumption... anyone else has this experience??
but for what is worth, the slight sound increase was nice..going for my 2nd tank of gas and Im averaging 17.8 mpg (85%city 15% hwy) and with the valve off I was done to 15 to 16 mpg weird...