Catalytic Converter, 98 Volvo s70 T5

fletch02536 · Post by **fletch02536** » 11 Sep 2007, 17:27

My cat is starting to smell pretty burnt up when I drive it for any period of time. It could be just moisture but I smell this heat smell a lot of times when I step out of the car after a four hour drive. Any ways, I wanted to know if it is alright to use an aftermarket cat on the T5, I herd it messes things up. I think it would free the turbo up though a bit. I already custom made from the cat back but didn't want to mess with the cat unless I had to.

Help!?!?

Thanks

Post by **MadeInJapan** » 11 Sep 2007, 18:12

A lot of people do.... Magnaflow if I recall. Do a search here...I think there's a write-up about it.

Klausc · Post by **Klausc** » 01 Oct 2007, 13:10

The next time you drive your car, give the cat a visual. If it is red hot, it could be that something else is the problem.
Are you running rich? What's your MPG like?

Klaus

fletch02536 · Post by **fletch02536** » 02 Oct 2007, 06:44

Actually the problem ended up being that the turbo oil return line was leaking out onto the cat causing a bad smell. I ordered some o rings online but I was sent the wrong ones so I made my own out of some rubber gasket material.