Slipstream Steve

As part of my hunt for the unexplained mystery of no boost, I pulled the main cat.
Pictures attached.
Never pulled a cat before. Do you think its clogged?

You cant see any light through it, and if you shake it up and down, there's a small rattle, but it doesn't feel like the whole honeycomb is moving around in there.





thanks

j9fd3s

iTrader: (3)

the second pic is what it should look like, the first picture is what it shouldn't. it might still squeak by a smog test, but its days are numbered

Slipstream Steve

Thanks, mate. I'll chuck it back on the car until I can pick up another cat, as test-pipes aren't good for boost creep... but even boost creep would be a welcome change!

adam c

iTrader: (2)

There's a good chance that you can shake out whatever debris may be in the cat. I suggest doing this while you have it off. Whatever you can shake out will be good to remove.

Rusty 13B

Steve - remove it now and by a power fc to control your boost (and the NZ made datalogit). Your right that it wont help any spikes - but your not at that point yet cuz!

Rusty

Sgtblue

iTrader: (16)

Disagree. A PFC won't do anything for boost creep, which is what he's risking by removing the cat with the stock twins. Either port the wastegate or leave some back-pressure in the system.