Airtabs

i have used them on two toyhaulers now. i cannot say i felt any reduction in suction from a passing truck. i can say the rear ramp doors stay clean and free or road debris where they didn't before. they do work but result vary for diff rigs. i did have a set painted to match my truck. i mounted them on the roof over the rear slider. i had such a tornado in the bed of the truck that it actually sucked a 5 gal fuel can out with 1 gal of fuel left in it. would also suck the 3/4" rubber mat off the bed and flap, ripped my 7 pole cord out the socket a few times. after applying them to the roof that reduced that by prob 85%