I can't speak for all states but I recently had my 04 Z smogged in AZ. They didn't even bother using the sniffer nor did they pop the hood. I paid them 30 bucks, they plugged in the OBD2 connector for less than 30 seconds, unplugged it and said you passed.

I asked the guy since I was amazed at how lax it was if I were to put a turbo on the car would it make a difference. His answer was, as long as it doesn't throw a code the car still passes.

 

Man I want to live in AZ

 

Same thing with MD, they only check for codes. They don't use the sniffer.

 

i know a friend who passed the emission w/ a downpipe plus heavy mod in his evo in California.

 

which smog test in california????????????

 

Then the gas smell is not that bad?

 

How much did he slip the inspector?

 

so no rasp at all? i wonder how it sounds with the hks

 

I got use to it pretty fast. It's worse because the weather is cold so your fuel mixtures change slightly. I kind of like the smell, it reminds you of the old muscle cars. At idle you can definitely smell it.

 

Do you notice a difference between the TP and HFCs?

 

My @$$ dyno feels a tad bit more torque, but I can feel it in the top end more. I'm putting the Gen 3 intakes on Tuesday and the cars getting custom tuned Thursday, so we'll see what it puts down then.

 

Can't wait to see. Do you still have headers?

 

No, they've since have been taken off. I have a local pending sale on them, but I'm willing to take $375 shipped now because he can't come up with the funds for the next 2 weeks.

 

Didn't like the headers?

 

It changes the tone of the exhaust and smooths it out a little bit. I didn't prefer it, but I'm sure others would. There wasn't any rasp which was a plus and I know there's gains to be made with the headers with a custom tune.