aFe Power
aFe Power Air Intake Systems, Exhaust Systems, Headers, Intercoolers, Turbochargers, Programmers, Torque Converters and more
Advanced FLOW Engineering (aFe Power) is a premier designer and manufacturer of automotive performance upgrade systems and components. Current product lines include cold air intake systems, high performance direct fit and racing air filters, exhaust systems, headers, intercoolers, turbochargers, electronic programmers, diesel fuel systems, torque converters, throttle body spacers, and more. aFe is passionate about providing the most compelling, innovative, and highest performing products that are designed, built, and tested in the USA. aFe was founded in 1999 and has headquarters and manufacturing facilities in Corona, California, USA. Accesspeed has been supplying aFe products to our customers since we opened our doors, and we are proud to offer the wide selection of aFe Power parts and accessories.
Chips - Programmers - Tuners » Speed & Speedometer Calibration
Speed Calibration and Speedometer Calibrators
Do I need to recalibrate my speedometer?
As long as your vehicle is maintained at factory specs for tire size, gear ratio and transmission, the speedometer should continue to register vehicle speed within this range. If you modify your tire size, gears and/or transmission, your speedometer may need to be recalibrated.
How do you recalibrate a speedometer for bigger tires?
Changing tire size is one of the most common things car owners do that can affect speedometer accuracy. Most modern vehicles can have the tire diameter changed in the vehicle computer, which will recalibrate the speedometer properly. However, if your vehicle does not have this feature, you will need to purchase a Speedometer Calibrator.