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Our Price: $210.00

Availability: Usually Ships 24 to 48 Business Hours
Product Code: WR-4209ADPT-AC

Description Technical Specs
Used to correct speedometer because of tire size or gear ratio changes
Fits 1994-2004 Mustang manual and automatic transmission
Fits 2005-2010 Mustang with manual transmission. Will correct speedometer. It has no limit on magnitude of gear ratio change for manual transmission vehicles.
Fits 2005-2010 Mustang automatic transmission.
Will correct speedometer to equivalent of 10-percent gear ratio change, higher or lower.
NOTE: To maintain cruise control function on 2005-2010 Mustang automatic and manual transmissions, gear change is limited to equivalent of 5-percent higher or lower ratio plus or minus 5-percent change.
For example, a gear change from 3.55 to 3.73 results in a gear ratio reduction of 4.8-percent so cruise control will continue to operate normally.
A gear ratio change from 3.55 to 4.11 results in a gear ratio reduction of 13.6-percent so cruise control operation is lost.
The Speed-Dial scales a frequency based vehicle speed signal up/down to maintain accurate vehicle speed indication to the instrument cluster and PCM.
Easy 4 wire installation
No reprogramming of PCM necessary

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