Afe twisted steel headers

I believe @glorifiedwelder got these and the cats went bad super fast.

 

They lasted one month for me.

 

Those are the AFE?

 

What kind of fuel was he running?

 

Yeah they are afe. 91 octane

 

I also had p0420 and p0430 codes from day one, which didn't bother me. I got those taken care of, but as someone who's owned an exhaust in the past. Oem cats are always better.

 

I personally feel this would be the better way to go. V-bands obviously aren't necessary

 

I like that idea

 

Glorified
How did you figure out the cats were bad if you already had a code?
I have a set of AFE's as well.
Were there any symptoms?

 

Clogged cats don't generally throw a code. The code I got was a bank 1 inefficient code on day one. That says its allowing too many pollutants through to the downstream o2 sensor. It's fairly typical for a high flow cat to throw that code. Once I pulled the rear o2 or of the stream a little the code went away. The side that broke was actually the bank 2 side. It never threw a code, but once it clogged I didn't expect it to

 

Man I'm still bummed about these!!!!..... I was hoping to throw a set on my truck.

 

Did this on my girlfriend's truck.

 

This is some crazy sh*t.

For high flow cats, I prefer the metal core to the ceramic core.

 

They actually turned out to be a ceramic coated metal core. The slipped down in the converter body. I also prefer the metal core until it time to hollow it out. Removing the metal core on these cats was a nightmare

 

I believe it.

 

I may need to replace a factory cat below my JBA short tubes and I'm looking for options.. What is the setup in the picture?

Or should I just hollow them out?

Thanks Guys!
Coe

 

That's a Doug thorley short tube and oem cat flanged together with a vibrant 2.25" v-band.

 

Are those yours?

 

No, I did them for another guy on here. The destroyed afe's are mine. I had all the stuff including the dt short tubes, but then the afe's presented themselves at a crazy good price.

 

Hmmm. Thanks for the response! They must have been new or even used oem cats huh? Wheres the best place to find the flange and v-band?

I still need to find a cat though...