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Performance Upgrades - Maintenance - Modifications - Problem Solving - Off-Road - Street Trucks. Covering the Explorer, ST, Sport, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Aerostar. Featuring H.I. - Human Intelligence.
I have a 91 ranger all stock and I have the same whistle sound from 10 mph on up. It does sound like a turbo an aweful lot. any help would be greatly appreciated.
