2005 Monte Carlo SS Supercharged....thinking of replacing the catalytic converter and am wondering what's a model number that offers 200 CPSI? I see Magnaflow offers that on some models and Flowmaster on some models---but I can't find any specific model of those brands that say 200 CPSI that will fit my '05? Any help is greatly appreciated. Thanks guys

P.S. I'm in Michigan so emissions testing is not a concern

 

TBH, that's a pretty specific request, so itll be tough to get a lot of feedback. Looks like a lot of distributor sites dont list many details about the cat construction, just external size (for fitment purposes) and if it meets XYZ emissions or not. You're probably best off emailing Magnaflow or calling a big distributor like Jegs or Summit if it absolutely has to be 200 cpsi.


What we could help you with is if you weren't dead set on that and just wanted suggestions for a replacement in general. Are you looking for:
-Universal weld in cat or direct bolt in with downpipe?
-Stock replacement or "high flow" aftermarket?
-If high flow, do you care if the check engine light gets triggered?

 

Thanks I appreciate the honest answer I was thinking of calling them---sorry I wasn't trying to be too specific LOL. Yeah I would want a "high flow" and preferably without a CEL? It wouldn't have to be 200 CPSI necessarily (just high flow). I'll have it welded in at a local shop. I had a P420 before when I replaced the cat in my old '01 Monte Carlo SS and I bought the ZZP rear O2 delete but I'm reading that the O2 delete doesn't work on my '05?

 

Not sure if the O2 delete works on the 05, if it doesn't I might be able to assist with the PCM....
https://montecarloforum.com/forum/pr...-3100-a-42773/