Will a firm shift tune hurt a transmission??
Moderator: mikel
Will a firm shift tune hurt a transmission??
Recently updated to 9r09 from 9r04 on the u7140 tuner and lost the k&N firm shift tune. There's a "firm shift" tune but is it gonna be the same as the one that disappeared and does it hurt the transmission on an automatic mustang? Thanks
2006 Mustang v6
-Cold Air Intake
-Dual Enxhaust
Predator U7140
05-9r04.crom
#297113
-Cold Air Intake
-Dual Enxhaust
Predator U7140
05-9r04.crom
#297113
Re: Will a firm shift tune hurt a transmission??
No.
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