As far as I know, exhaust (cat-back or axle back only) and only if it meets the db requirement.
No intakes that I know of are CARB legal.
No headers that I know of are CARB legal.
FRPP S/C IS CARB legal, believe it or not, and I believe some of the others are as well.
This state is stupid, and run by tree-hugging nazis.
*Disclaimer, I love the environment, support conservation/preservation, but the CARB is an absolutely ridiculous bunch of dolts.
2011 Kona Blue 5.0 / 400A / MT82 / 3.55 / Brembo Pkg / Comfort Pkg / Security Pkg