i noticed most part that are advertised for the vit say nothing about being california emission legal.... like mugen , spoon etc.... anyone got a clue???

 

depends on what it is.axle backs are legal as are the b-pipes since they are after the cat

 

intake and exhaust street-legality is based mostly on emmissions. anything that would change the emmissions, is probably not street legal. if it doesn't specify legality, it is probably not.
companies like DC sports focus on making products that are street legal, but as SPON FIT stated, since a "cat-back" is after the catalytic converter, there is no other "emmissions reduction" occurring, so they're mostly legal, but their volume is also in question since exhausts also have volume limits.

 

I have yet to hear an exhaust for this car that is loud, they all have medium tones, youre fine with intake and cat-back exhaust. GL on your buys