CAI and Tune

[TonyNJ]

I'll chime in with this recent experience while restoring my car back to OEM specs.

Car came with a JLT CAI kit and Lund tune to match it. Car ran very strong. No problems.

Reset the tune back to stock (was going through state emission testing and didn't want drama), but left in the JLT CAI (as advised by Lund). Car ran horrible. Lots of codes, irregular idle, bad. See @ice445 comment #13

Put the OEM intake box, filter, parts back in the car, refreshed the factory tune again, car runs great. No problems.

Maybe it's psychological, but I'm pretty sure it's not a fast. Passed state emissions, and probably would have with the JLT/tune but like I wrote earlier, trying to bring the car back to stock all around.

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[JakeLethal]

What’s the best for the 2021 GT what’s the best for long term kids as well

Hey there! So, best is gonna be subjective haha. However, I'd have really good luck personally; with JLT and a Lund Racing tune. Although there's a multitude of options out there, what are your long term goals for the car? Do you plan to go boosted? Are you gonna stay N/A?

Feel free to PM here at Lethal Performance and I'll be more than happy to go over the options that are out there for you!