Catalytic Converters Part Number
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.
Last edited by big_g; Feb 5, 2016 at 07:56 PM.
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.






