big_g

Can anyone tell me what part numbers I want for some new MagnaFlow Universal Catalytic Converters?

Maybe the real question is what is the best bang-for-the-buck to replace the stock cats on a stock car?

I've got a 2000 WS6 with stock exhaust besides the TSP Rumbler cat-back.

NeverSummer

only ones I can think of are the flowmaster ones http://www.flowmastermufflers.com/?page_id=13041 Part numbers 2010008 and 2010009

RevGTO

iTrader: (12)

As you can see from the link, you can't use universal fit with the stock manifolds and Y; you have to use direct fit. And they are expensive. You could get into some long tubes for what you're going to pay to replace the stock cats.

Project Bird

I've got almost brand new cats that I took off of my car. direct fit OEM replacement. PM me if interested.

big_g

Holy crap, no kidding! Almost $500 for some cats...
I'd love some long tubes, but I have to pass emissions. :-/ Or do you all just tune out the o2's? I'm sure there are a ton of threads on that already though, so I won't get into that here.

Mappinsj

Just get some universal cats and pay someone to weld them in. EBay cats

Project Bird

The part numbers for Magnaflow direct fit replacement cats are 51587, and 51788. I told you before I had cats for sale before but had no idea they were Magnaflow until I went to my storage building to look for a number on them. Only 3k miles on them PM if interested.