California Smog Check Official thread

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02-21-24, 05:43 PM

#271

iH8RICERZ

Racer

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Quote:

Originally Posted by Maxxam

You guys are in the 'got lucky' category. Any smog tech who wants to protect his license will surely take a look under the car, especially if there is an aftermarket cat-back (or more) exhaust installed. They can lose their livelihood if busted. Some techs are lazier than others. 🤷‍♂️

It really is up to the shop that's performing the smog check. Years ago, I went to one with my borla catback, they just looked in the engine bay and plugged the car in and passed me. The tech did say "I know your car is modded, but don't trip". Two years later, I went back and then they decided to look under the car and noticed I didn't have my primary cats and told me to go some where else that'll pass me. I've also been to one smog shop that has never seen an ISF before and they thought I did some sort of motor swap. They were so confused...

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Maxxam (02-26-24), semnosNSX (02-21-24)

03-05-24, 12:09 PM

#272

DanceEng

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To be clear, would it be possible to pass by adding the headers and then adding CARB compliant cats like these?

Amazon

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03-05-24, 12:29 PM

#273

symatt

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Quote:

Originally Posted by DanceEng

To be clear, would it be possible to pass by adding the headers and then adding CARB compliant cats like these? https://www.amazon.com/Walkers-WALKE.../dp/B082FPG88D

No not possible as any other headers for this car are not carb compliant

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lobuxracer (03-05-24)

06-14-24, 07:51 PM

#274

dappy9

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Quote:

Originally Posted by kzlflash

Same here (but SoCal - 626). I have stock headers and Joe Z exhaust. My place has just been visually inspecting the hood and checking for codes. They've never checked underneath the car.

I do think I have cracked headers though and I'm constantly debating if I should get the PPE headers w/ hi-flow cats, but it would be an expensive venture if I wasn't able to pass smog... At the same time, spending all that money on stock headers for 0 gain would suck too

hey brotha where do you get your car smog'ed at? located in socal near the 626 and need to smog my car along with registration