Hi, Scotty!  Love your videos!  Very helpful.  Thanks!

I have a 2008 Nissan Rogue that is C.A.R.B. equipped.  It's in Maine which has similar rules.  It has 175,000 miles on it but runs well.  The manifold/cat converter cracked and needs to be replaced.  I called the State office that handles this and they issue exemptions if the value of the car is really low.  They don't expect you to put a lot of money into a really old car.  So, they said they'd issue an exemption that I could put a NON-California catalytic converter manifold on the car ($250) vs. the Cali one ($1,500).  That's great.

Then, I thought - Would it fit?  Would it mess up the computer that checks this stuff?  Should I replace the two O2 sensors?  With which ones, the Cali type or the non-Cali type?  

I've ordered a non-Cali cat/manifold (they are one-piece units) as it appears identical and would bolt on without a problem.  I'm thinking this would all bolt together just fine and I can salvage the old O2 sensors (both upper & lower) and put them on the new manifold.

Do you think this would work?  Or, do I need to do something else (other than get rid of the Rogue)?  I don't know if the computer can/needs to be reprogrammed?

I called Nissan dealers and repair places and they just don't have the answer to any of this.  My guess is they never encountered this.

I appreciate the help!  This is for my sister's car and she has limited income.

Thanks,

Chuck Gage