I have a 2002 Tahoe with duals, no cats, cold air. Basically stock. Runs like a turd. I bought the mvpi2 tuner. Changed t/m, and shift firmness and few other things to try and get some low end torque. I wrote to vehicle and drove it and I can't even tell a difference. I'm $500 in the red and no change
A lot more to tuning that what you did
Email Tunes, [email protected]
96 TA Blown/Stroked, 4L80E/Fab 9
15 C7 A8 H/C 2.3 Blower/PI
14 Gen 5 Viper
Custom Mid Engine chassis, AKA GalBen C
Yeah, pretty much what you did is going to do nothing.
Like he said, there is tons of other things you can do but you just have to know what you are doing first.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
just for fun, post the stock tune and the tune you made so we can see what all you did.
If you have no cats, you have to delete the rear o2's and related codes.
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