cats. It was basically worn, cracked and making loud noise when accelerating.
So, I went to the muffler shop and swapped with single high flow cat instead of 2 back to back cats.
Runs much smother and quieter!
Sorry for the VAGUE post.
Here it is.
Few month ago, I had my Cat diagnosed as "Clogged", rusted and disintegrated gaskets, resulting loud sound, exhaust leaking through the cat and joining gasket.
I went to the dealer (Shame on me) and the estimate was $1350.00 to replace cats.
No way in hell I am paying for that, so I decided to go to the local muffler shop who worked on replacing Toy LC double cats with one high flow cat referred by one of the MUD member.
So, I made an appointment and went twice but owner was having some issue and the shope was closed.
So, I decided to go back and shop was open with different owner but same mechanic. He knew what to do, so I gave my baby to his hand and Valla! Shaved off about 50lbs, car runs much smoother, quiter. I have not noticed MPG change.
I hope this helps.
My exhaust stinks. I think its the cats. I removed one and it looked ok. I could see through it, no leaks till I put the wrong gasket in and it got pinched.
I had a couple gaskets and didn't know where which one went so I just mached it up with the one that came out.
Well, now I know why it was leaking at the gasket before I removed the cat.. Some one put in the wrong gasket . It was too big and would fall out and get crushed when I would tighten the bolts.
I would love to have a time machine and go back in time and get a couple of "test tubes" (for testing only) and how the 80 runs without cats.
I would never try this in day of global warming.
Isn't it true that cat's only remove smog and cause more carbon(greenhouse) by burning up the gas that the motor didn't burn??? :-\
I will spell out the fluous details that are missing.
what make and model of cat, what did cat cost, how much labour in hours, custom pipe work needed or not, oh and have you run it through emissions testing yet?