TERF

The finest Speedometer, Odometer & Tachometer Calibrators and Test Equipment in the world. Built to exceed OEM Specification, SpeedChanger & TachChanger are the Premiere Electronic Ratio Adapters, stable enough for Automatic Transmissions and versatile enough for virtually all vehicles of any type, even difficult Ford Mustang, Marauder, Trucks, Vans, motorcycles, cruse control, GPS, radios and engine controller computers (ECM) including GM, Chevy, Chrysler, Toyota, Mazda, BMW, Mercedes, Ferrari, Lamborghini, Subaru, Honda, Freightliner, Peterbuilt, Kenworth. These devices repair inaccuracies caused by changing gauges, instruments, wheels, tires, rims, differential, gears, transmissions, engines & more. TERF Inc. is the Only source for the Rutan Aircraft Factory CD ROM Encyclopedia. Speed-Cal Tool (Compete Speedometer Shop in a Box) & SpeedChanger Mechanical are the only devices of their type anywhere. TERF Inc. Performs all manner of Contract Research & Development, Fabrication &..

Also known as: TERF Inc.

Primary location: Ann Arbor United States