Originally Posted by Jim W
I have a 4T80E, what does this tuner do?
Here is the description from DP:
4T80e Electronic Shift and Line pressure Tuner $135.00
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This simple plug-in device makes your automatic overdrive transmission perform the best it can without a performance rebuild.
This unit is the very best of the budget performance options on the market.
TransTunerô increases line pressure and shift firmness, eliminates expensive valve bodywork, eliminates overdrive torque converter shudder, and eliminates burnt bands increasing transmission life. Best of all, TransTunerô
Wonít void the factory powertrain warranty.
Installation takes about 10 minutes with no special tools required.
Each system is backed by a limited 90-day warranty.
Sounds kind of like a shift kit, to coin old muscle car terminology!