Will a tranny tune be needed with 3.90's? [Archive]

Will a tranny tune be needed with 3.90's? [Archive] - SmokinVette.com Forums


SmokinVette.com Forums > Corvette Forums > C6 Corvette Forums > C6 Scan & Tune > Will a tranny tune be needed with 3.90's? PDA : Will a tranny tune be needed with 3.90's? CJX 03-17-2009, 07:58 AM I have a '05 C6 A4 and have been thinking about changing the gears to 3.90's and was wondering if the tranny will need to be tuned after the install? Tuner@1320hp 03-17-2009, 08:11 AM You will need atleast the computer edited for the different gearing, especially if it's an automatic, all the shift tables will be skewed, as well as the speedo if not. DynamicTuningSolutions 03-17-2009, 10:10 AM :iagree: Definitely will require a tune for 3.90's. AND you will love the acceleration!!! Enjoy! quaid34 03-17-2009, 07:17 PM That is what my buddy said after he got his 390s put in, he loves them to death!