Just thought I was would post as info.

Same deal as everyone else. Drivers side cat imploded.

I even got a SES light for miss fire.

Its running much better with the stock cats back on, but I can also feel the difference that the high flows made before they went to crap.

Booo R/T

 

how long were they on?

 

I'd say they were on for ~10,000 mls. But I have a feeling they started to break up a couple K ago.