So I ordered the mm3 with emissions intact tuning from a big name company that will not be named at this time( trying to let them fix it). I have a 2018 3500dw with the aisin trans. Got 4 tunes heavy tow, light tow, Street, and Race. Towing with any under the street tune has way less power than stock. Street feels close to stock and have never towed in (race). Even not towing you can tell the power is less than stock. Every one that I have seen does power levels based on the 68RFE. So anything less than 130lb added will be less than stock is what I’m thinking. I know this is a longer read but did I waste money trying to tune my Aisin equipped truck. Or are my tunes rubbish Thanks
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