If the engine is in good running condition & the emmisions testing place, just checks for codes via the obd2 connector, then you'd have no issues. If they check for equipment & you don't have it then no passy. I have a Fwerks header/cams & a tune w/ the rear o2 senser & egr turned off & pass.
Interduce Mr. Torsen to the mix
D23 crew- D-Tech- Sedan Revolution= #131