50 state legal Cat for LS1?
01-29-2006, 06:44 PM
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50 state legal Cat for LS1? Dropping 99 C5 LS1 into my 82 C3. In CA, after doing a swap you have to go to the referee to be legal. The ref will look for legal cats, but much to my horror, I have yet to find 50 state legal aftermarket cats for the LS1. Please, somebody tell they exist and where I can find them. The GM cats are $650/pc. . . . from gmpartsdirect; like $900/pc from a dealer. Don't really want to go there.
01-30-2006, 12:02 AM
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I am in the same boat - putting vette ls1 into my 79 C3. Gotta have the OBDII port also I hear.
Are you putting a single cat in same location as your original, or going dual cats? In the code they seem to indicate you should only replace with same number and location - have seen folks have got dual cats approved by referee though. Seems like LS1's would run cleaner with 2 also...
Once and a while you see folks selling their oem cats from F and y body cars for $100 or less ....
Are you putting a single cat in same location as your original, or going dual cats? In the code they seem to indicate you should only replace with same number and location - have seen folks have got dual cats approved by referee though. Seems like LS1's would run cleaner with 2 also...
Once and a while you see folks selling their oem cats from F and y body cars for $100 or less ....
01-30-2006, 02:17 PM
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I called the CA bureau of automotive repair and they had a supervisor call me back. He said that you can have more cats than the original, but not less. As for the distance from the exhaust he said I needed to speak to a referee supervisor. I haven't called them yet.
I've been searching around for cats for a little while now. Here's what I've found:
http://www.dynomax.com/documents/super_specs.pdf
They have CARB numbers, but mention that they're not legal for OBD-II. Not sure if the referee can be talked into it since it's a conversion. My guess is no.
And I had also found the car-sound ones you put a link to. I've heard positive things about them and that's probably what I'm going with.
There was one other I found, but I'm having trouble finding my notes file with the info on it.
I've been searching around for cats for a little while now. Here's what I've found:
http://www.dynomax.com/documents/super_specs.pdf
They have CARB numbers, but mention that they're not legal for OBD-II. Not sure if the referee can be talked into it since it's a conversion. My guess is no.
And I had also found the car-sound ones you put a link to. I've heard positive things about them and that's probably what I'm going with.
There was one other I found, but I'm having trouble finding my notes file with the info on it.
