Re: Automatic: Shift kit or tuner?
I personally like the idea of the tuner simply because it's much easier to install and manage. If you no longer want the aggressive shifting, simply load the stock tune back into your car, simple as that.
With a shift kit you have to start upgrading components in the valve body to get those better shift points and eliminate that slippage.
I'd say it's one or the other...if it were me, I'd go with the tuner.
12 Black GT500 SVT PP l VMP TVS l JLT123 l O/R X l 28x11.50Rx15 M/T Street R's l BMR Suspension l Recaros
03 Sonic Blue 3.8 / 17 Magnetic Fusion Sport 2.7 EB