u/Bor845

After a year of being on a 3.25" pully on the 3.6 (2018 cts awd) I decided to get the 3" pully (new plugs gapped at .28 and a new belt, 106 3/4")..took the weekend to tune but we'll worth it imo.

I had to dial things back some because it looks like I now need some fuel upgrades. And interesting enough it looks like the stock airbox is an issue. I was maxed out around 41-43 lb/min on thw stock box and having issues...eventually got to the point of opening up thw box and now getting 47-51 lb/min of air flow...

Still working on the tune, dialing it in..but this is now a really fun car.

I also now need a catch can as I am seeing oil in thw intake tube.