Hi,

This is all about my OEm exhaust... Please no need to says "get aftermarket exhaust", I just don't want to (being very disppointed after a few of them)...

I have finished emptying my cats but some few small debris (from the cats) fallen into the oem exhaust chamber itself. There is no way to reach it. When I shake the entire exhaust system, I can hear a few of them... My question is, can I install it on the car and wot it so all the debris get out ? The debris, IMO, are not larger than 1/4 inch ...

Second, can some of those debris get sucked back trough the turbos all the way into the combustion chamber ? What are my chances it get happens ?

Opening the exhaust and rewelding it is not possible. All the cats inside walls has been polished and it is not very smooth...

Thanks
Bo

 

Well, luckily the exhaust is flowing outwards, so it won't "suck" it up. If I were you, I would just stick a air chuck into the 02 sensor bung, and try to blow it out if you are that concerned.

 

I've heard about "backpressure" pushing air back into the chamber, that is why I bother...

 

I think that is more of a concern with a NA engine than the turbo, everyone else I know that has done what you have has not had a problem.

 

You dont have to worry much...I have had cats crumble on me while still on the car and running (WRX, not the TT), its the rattling thats annoying. Just try your best to clear any debris out for the sake of rattling, dont worry about it being sucked up...