not sure what cat converter to get???

andy

I just bought an 04 Spec and the guy that had it before me decided to try to be stealthy with his exhaust and just removed the stock cat and welded on some 2.25quot; piping to the factory muffler.  Basically it sounds like **** and I ordered an Apex'i N1 muffler, Magnaflow 18quot; muffler and now I'm trying to figure out which cat I need to get.  Just need to know if I need to get one with 1, 2 or zero 02 bungs.

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Originally Posted by SoleeI just bought an 04 Spec and the guy that had it before me decided to try to be stealthy with his exhaust and just removed the stock cat and welded on some 2.25quot; piping to the factory muffler.  Basically it sounds like **** and I ordered an Apex'i N1 muffler, Magnaflow 18quot; muffler and now I'm trying to figure out which cat I need to get.  Just need to know if I need to get one with 1, 2 or zero 02 bungs.

you only need one bung, one O2 sensor goes before the cat, one goes after it.

Random Technology makes some nice cats.

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Originally Posted by SoleeI just bought an 04 Spec and the guy that had it before me decided to try to be stealthy with his exhaust and just removed the stock cat and welded on some 2.25quot; piping to the factory muffler.

That's as NON-stealth as he was going to get. The 18quot; magnaflow you're getting, that's the resonator, right? Mine came with a bung for after the cat. You should already have the first bung on the header, correct? If you don't have one on the resonator, then get a cat with 1 bung.

.yah the 18quot; magnaflow I'm using as a resonator and I do have that first sensor on the exhaust manifold.  

Been a while since I've modded a car, and even back then it was an OBD0 car so I just want to get all this right the first time.

thanks guys.