All the UpRev tunes are mod/car specific. The only difference with a dyno tune is that's it allows for much more fine tuning based on your real results. eTunes are based on the info you collect in your Cipher data logos and send back to UpRev. A dyno tune actually measures the power in addition to the other data to make a better suited tune of your car.
Bottom line, you're still better off with the dyno tune... always.
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