LenXIII

I was thinking about getting a stock tune put back on but I would have to pick up a stock air intake as it has a JLT (tune required) on it right now. Most of these suggestions seem viable but again there are so many different things it could be so it's going to be hard to narrow down without throwing so much money at things that might not be the issues.

I do think though the stock tune would be the best starting point...guess I'll start checking ebay and such for an intake...

fourdegrees11

If for some reason you can't find a cheap stock intake, there are cheap cai kits that don't need an aftermarket tune.

https://www.americanmuscle.com/spectre-performance-cold-airtake-polished-1114-gt-12-13-boss.html

bstang14

I have stock setup with k&n from my 14. Not using any more cuz I'm FI. Let me know if interested and we can work out details.