Gear Help!
03-08-2009, 11:24 PM
#1
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Gear Help! I am going to be installing 3:90's and was wanting to know is a tune needed to fix the speedo or what is needed? I had 4:10's in my stang but the shop did it with everything else so I had no idea what they did. Forgot to ask. Please advise!
03-09-2009, 07:15 AM
#4
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I don't think you need a TUNE.....You will need a hand held tuner or EFI LIVE, HP Tuners. Go to gear selection and type in the new settings....When you here a tune is needed, you don't want to go where you don't have to...