The Scotty II is great for big air flow. Other things to consider though, like the intake is just below the windshield on the passenger side. Passenger is exposed to lots of sucking noise and turbo whistle, if you live where it is real buggy, you must check the filter frequently. On the way to May Madness in Las Vegas, I had to stop and clean the outer filter at the top of the hill climbing out of Laughlin. Was completely covered in small flying insects.