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Discussion Starter · #1 ·
Is anyone running a full header back exhaust and if so has eliminating 1 of the 2 Cats caused any problems with passing emissions, I’m in NY if that helps we have pretty struck emissions rules not California strict but enough to be annoying?
 

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Is anyone running a full header back exhaust and if so has eliminating 1 of the 2 Cats caused any problems with passing emissions, I’m in NY if that helps we have pretty struck emissions rules not California strict but enough to be annoying?
I was running one cat in CT and got a tune to remove the CEL. All the inspector did was look under the car to see one cat and scan the ECU for problems and I was fine since we took the CEL off
 

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Discussion Starter · #3 ·
I was running one cat in CT and got a tune to remove the CEL. All the inspector did was look under the car to see one cat and scan the ECU for problems and I was fine since we took the CEL off
No problem with emissions??
 

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Wow they checked huh
Yeah, I had to change my manifold back to stock but its possible I could of just gone to a strict shop. Im sure you may be able to find a shop that allows you to run catless exhaust. I tried to look for UEL catted manifolds but they set you back quite a bit more compared to my CNT UEL catless I had
 

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Yeah, I had to change my manifold back to stock but its possible I could of just gone to a strict shop. Im sure you may be able to find a shop that allows you to run catless exhaust. I tried to look for UEL catted manifolds but they set you back quite a bit more compared to my CNT UEL catless I had
So I'm guessing you have no problem with your vehicle emitting unspent hydrocarbons, nitrogen oxides, and carbon monoxide into the atmosphere just so you can get a small bump in power and that cool sound.
 
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