CA motor vehicle code does not allow for modification unless it is accompanied by a CARB E.O.
I had to get rid of my supercharged mk4 Jetta because of. All emissions equipment still in tact, passes the actual emissions test, etc…
Did not pass visual as the tech saw and heard the vortech centrifugal charger off the intake. Even fairly concealed by the engine cover still inplace.
Cat back exhausts are OK, start messing with cats and sensor relocation and no go.
I guess it all depends on who you take it to out here but they can be a real bitch to pass and even if they don’t know every engine by memory they all have every manufactures engine diagrams to reference. They will use mirrors to search under the car to verify everything is and where it should be.
On the few ocassions that I have been pulled over, I just turn my engine off and put my hands on the dash/wheel where they can see them. Have not been asked to pop the hood though (even in a high speed stop). Guess its just a matter of time.
And yes they absolutely have roadside emissions stings here with portable rollers and techs ready to pounce and impound your vehicle. Helps a bit that we are awd for the most part.
Also, CA has apparently gone to no sniff test and all visual/OBD II readiness. Basically plug in and if your ecu checks out and they don’t find any mods to fail visual, you’re good to go. What I have heard from my local shop is these smog places operate on a ratings system. They get scored from the state. The registration renewal will tell you if you need to go to some “gold star” shop or if any old place will do. Here’s the issue, you are allowed at least one failed readiness (might be 2), but these shops get dinged by the state in their rating if too many failed tests are reported and lose the “gold star” rating and money, etc…some of them will turn you away even if you meet the 1 readiness failure threshold. Its a joke!
Bottom line is its a fucked up, intrusive, money grab that I’m ready to get the hell out of. For anybody that can’t tell or doesn’t know, CA IS FUCKING OVERRATED. PERIOD!