PCI Race Radios RACEAIR Flex HOSEPCI Race Radios RACEAIR Flex HOSE Item #: 3746 When you need a lighter, more flexible hose for your fresh air system, the RaceAir Flex hose is your solution. Available in 3ft, 4ft, 5ft, 6ft, 8ft, and 10ft. Tips for hose length: Leave yourself a little slack so you have plenty of room to turn your head. If ordering a dual, order 2' longer than the first hose. (3' and 5' or 4' and 6'). If you're mounting the RaceAir directly behind your seat, 3' is