GCCBrian

So I plan on running the following for my exhaust, but I want to make sure when I smog my car and they put the sniffer in my exhaust the sniffer will pass me.

My exhaust setup is:

MAC Ceramic Long Tube Headers
MAC Prochamber to Long Tube Headres
MAC CatBack with 4 " tips out of the mufflers

Now if I run my stock cats, will I be okay on passing smog with the sniffer?

Also if I ran the Pypes High Flow Cats would I pass smog still?

Would there still be a performance gain with the stock cats, or will it be better with hi flow cats?

Lem-06

Are there even any long tubes that are carb approved?
If part of the exhaust Infront of the axle isn't carb approved I think it's auto fail. But not 100% sure

GCCBrian

Well as long as he doesn't inspect the car i'll be fine, usually my smog guy just looks at the stickers in around my engine and gets some stupid code and moves on. He doesn't spend time looking at headers etc.

BWfVA

I not for Cali. but I pretty sure there arent any carb approved LTs. I so glad I dont live out there. Basically here if it has cats your good.

GCCBrian

I read up somewhere as long as you pass the smog you should be fine?

I plan on doing a full tank of seafoam
Running 91 Octane
and running stock tune when i smog my engine

I will be having cats on anyways, so i should be fine, and im running the setup with mufflers so that should helpout?