Have you considered starting with a better intake and plenum? In my opinion that could be the first pill to take.

Check this out: https://www.ipdplenums.com/

 

No tune. I'm stock tune for a few more weeks. I felt the heat soak at the track a few times, when I started going full send. Haven't had a chance to do a full log, but my dragy times show deterioration as I go back to back with the pulls, even with some cool down time.
Probably will speed up the heat soak issue when I turn it up.

 

I've looked into those too, but I'm seeing a lack of data. We need more guinea pigs. If I go intercoolers, I'll do the plenum...main reason I'm looking at the decklid/spoiler first is because it's pretty easy to swap out.

I enjoyed taking apart my rear end for my exhaust, though it was a headache and a half.

 

 

Probably could route one inside cabin, through the back. I know there are meth kits, so it's possible. That said, I'm trying to keep it a bit more sleeper status lol