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Old 04-22-2014, 02:46 PM   #9
Ranatsu
Cone basher
 
Join Date: Mar 2012
Drives: 2017 Subaru BRZ Series.Yellow
Location: Dodgin cones in San Antonio, TX
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Quote:
Originally Posted by wparsons View Post
It will definitely affect the speedo.



No, it's 100% the ECU. There's actually no sensor in the transmission or rear end at all, the ECU uses the wheel speed sensors (ABS/TC/VSC) to calculate the vehicle speed. This is why changing the final drive doesn't affect the speedo at all, only a change in tire diameter will affect it.
News to me, Subaru has always used a gear within the transmission.
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