I need some advice, Recently my car has been getting a little sluggish so I check plugs and wires ect. Yesturday I was driving, I get on the expressway in first gear and put the petal to the floor to get up to Highway traffic speeds, I hit around 5500RPMs and kick into 2nd gear, the car starts spinning it's tires, grips and I get a hard boost of energy I look out my rear view mirror and there is a cloud of brown dust and things bouncing out from the back of my car.

The was running good and now feels a little sluggish again, so I ask my brother to watch my tailpipe while sitting in front of my house, I rev my engine up to 6K a few times and He yells to me that something flew out of my muffler.

I got photo's can someone tell me what this is and how I can get my car back to normal performance?

Thanks all.

 

Thats a piece of your cat. You car was probably sluggish because the cat was clogged. You can either gut your cat. Get a high-flo cat. Or remove it all together if you dont have to worry about emmisions.

 

Get a new high flow cat.

 

Thats what I thought the car was getting that bad emissions smell, Thanks guys.

 

yeah, the honey-comb piece in a cat is called a substrate. when heated, thats what helps turn the carbon monoxide to carbon dioxide

 

definitly part of the cat. As said above its a good time to upgrade to a high flow unit.

 

That's pretty damn funny...........I've never heard of pieces coming out the tailpipes before!

 

The substrate is just ceramic. Its the precious metal coating (platinum, rodium, etc) that acts as a catalyst for the reaction.

I used to work QC at a Delphi plant that coated the cores.