Emissions with No Cats
Instructor
Joined: Dec 2013
Posts: 235
Likes: 0
From: Jonesboro Georgia
if they look under the car .. no
if they dont look under the car and the computer isnt throwing codes .. yes
bought mine in december .. has a supercharger and full exhaust .. passed with no issues at all
look under it the other day to change the diff oil and theres no cats
if they dont look under the car and the computer isnt throwing codes .. yes
bought mine in december .. has a supercharger and full exhaust .. passed with no issues at all
look under it the other day to change the diff oil and theres no cats
Team Owner
Joined: Dec 2010
Posts: 22,723
Likes: 799
From: Hillsborough NC
NC Events Coordinator
Around here it's just a visual inspection.
I bought mine with no cats. I got tired of the smell and driving 50 miles to my speed shop's wink-wink, nod-nod inspector. I got Kooks hi-flow cats installed for $260, well worth the money to get rid of the smell and inconvenience.
I bought mine with no cats. I got tired of the smell and driving 50 miles to my speed shop's wink-wink, nod-nod inspector. I got Kooks hi-flow cats installed for $260, well worth the money to get rid of the smell and inconvenience.
Thread Starter
Intermediate
Joined: Mar 2014
Posts: 48
Likes: 0
From: Reno NV
Around here it's just a visual inspection.
I bought mine with no cats. I got tired of the smell and driving 50 miles to my speed shop's wink-wink, nod-nod inspector. I got Kooks hi-flow cats installed for $260, well worth the money to get rid of the smell and inconvenience.
I bought mine with no cats. I got tired of the smell and driving 50 miles to my speed shop's wink-wink, nod-nod inspector. I got Kooks hi-flow cats installed for $260, well worth the money to get rid of the smell and inconvenience.
Instructor
Joined: Dec 2013
Posts: 235
Likes: 0
From: Jonesboro Georgia
Around here it's just a visual inspection.
I bought mine with no cats. I got tired of the smell and driving 50 miles to my speed shop's wink-wink, nod-nod inspector. I got Kooks hi-flow cats installed for $260, well worth the money to get rid of the smell and inconvenience.
I bought mine with no cats. I got tired of the smell and driving 50 miles to my speed shop's wink-wink, nod-nod inspector. I got Kooks hi-flow cats installed for $260, well worth the money to get rid of the smell and inconvenience.
around where I live they just plug into the computer and there "supposed" to look under the car for cats but I guess they forgot
Instructor
Joined: Dec 2013
Posts: 235
Likes: 0
From: Jonesboro Georgia
Team Owner
Joined: Dec 2010
Posts: 22,723
Likes: 799
From: Hillsborough NC
NC Events Coordinator
A pretty good description. There is definitely a smell of unburned gasoline mixed in with a strong exhaust smell. It's definitely worse at idle and at parking lot speeds.
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
it depends how your inspections are done, some places it doesn't matter... even if you are supposed to have them there are ways around it... most places don't even look so as long as the rear o2 codes are tuned out you should be good... if you are worried about them checking you can always have a cat housing welded to the outside of your pipe to look like you have cats and have the rear o2s tuned out... I personally like the smell without cats and the sound
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