Will chaning the cat affect emission test? I will be install the OBX header soon, so i want to do the cat while i am at it...

Thanks guys

 

Absolutely.

 

no doubt

 

If you're wondering if you would still pass I think it depends on how stringent your states emissions are (and also what other mods you have). For example, I would assume Cali probably has pretty stringent demands and you wouldn't pass over there. In other states you would not have any problems.

I think the best way to go is to have a straight pipe that you can easily remove and replace with your original cat when it comes time to get tested.