pre-cat failure

I recently was blessed with the "Check Engine Soon" light. always glorious right? codes come back saying my pre-cat is clogging. so, instead of replacing the pre-cat i'm going to put a header on (duh :rambo: ) So i was wondering if i NEEDED a cat on for the car to run without being too rich or...

Hi all, Before I get jumped on, I was looking through a bunch of the different forums, but I didn't see one over another that I should use, so I figured I'd start here. This is my first post, and I just joined. If someone can tell me a better place to post this who's more familiar with the...

my engine is messed up due to the precat problem and am looking to buy a new or used engine and catalytic converter so anyone with an engine and or cat for sale pm me please.

Does anyone know if there is a class action lawsuit against Nissan for the " Pre-cat failure" issue? My car has been sitting and I thought I heard something but couldn't find anything anywhere.