2014 FiST PASSED 1st CA Smog Check with
COBB Stage 3 *Tune* loaded on an otherwise stock car emissions wise. Stock intake, sound symposer, turbo, CAT, and exhaust.
Every emissions related hard part is OE. Test every 2 years from here on out. CARB stickers or documents weren’t needed, nor were they asked for. I just rolled up for a Plain Jane smog check. OBDII port plugged in told them the story needed.
COBB Stage 0 through 3 will all clear the I/M Readiness monitors. Its the hard parts that have to be complaint to not exceed COBB Stage 2.