Auto Jaw Co., Ltd. is Taiwan supplier and manufacturer in Automobile Electronic Industry since 2000.Shadow Auto is high quality brand for Shadow Gauge, Sport Meter, Digital Boost/Turbo Meter, Petrol/ Gasoline Piggyback (Chip), Diesel Piggyback (Chip), Electronic Throttle Controller, Electronic Boost/Turbo Controller, Fan Controller, OBD2 Digital Meter Lite, AT Controller, VTEC Controller, Turbo Timer, Voltage Meter, Tuning Accessories, and soon. With advanced technology and 15 years experience, we always do the best to meet each customers demand.Auto Jaw Co., Ltd. owns Development & Research Department for designing and testing all products in long-term environment device to make sure the tuning performance, we also cooperate with clients to develop new items for different market, devoting to the best electronic tuning parts is the eternal belief of Shadow Auto.