Catalytic converters.

[Lou Merrell]

1996 K1500 vortec 350.
What brands are good brands for our platform. Currently, I'm running a set from flow master that's way overpriced and the heat shield on one cat has dislodged itself and something on the inside of one has come loose and rattles.
I want to put new cats on and continue with the dual exhaust all the way back.
I have a single muffler (1 inlet/2 outlets) so I already have the exhaust pipes. I just want to eliminate the 2 into one section and run Walker silent flows.

 

[SUBURBAN5]

I used bosal from rock auto

 

[df2x4]

I run a Magnaflow Y-pipe/cat on my V6 truck. It fits great, but I had one fail with less than 20K miles on it. Replaced it with the same part because I can't find anything better.

IMO, all the aftermarket options are less reliable than the factory cats.

 

[Lou Merrell]

Holy crap, this is ridiculous:

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How do these people expect to stay in business?

 

[Lou Merrell]

I used bosal from rock auto

Are they mandrel bent, and how many O2 sensor bungs?

 

[SUBURBAN5]

They have 4 ports and not sure. They all em on rock auto

 

[highwaystar]

Replaced the oem on my '94 with a flowmaster y-cat, it failed after 70k miles, rattled inside. Replaced that with a Walker brand, fingers crossed.

 

[Schurkey]

Perhaps a moderator will move this thread to the EXHAUST sub-section.

Instead of buying the $700+ full assembly, cut the cats out of your existing pipes, weld a couple of generic cats back into the original pipes.

Beware that the flange on the back is commonly warped and leaks. May want to make plans for dealing with that before doing anything else.

Generic weld-in cats used to be ~$60; I see lots of choices starting at $80 and up on the Summit site.

 

[Lou Merrell]

Replaced the oem on my '94 with a flowmaster y-cat, it failed after 70k miles, rattled inside. Replaced that with a Walker brand, fingers crossed.

Exactly what I'm currently experiencing.

 

[Lou Merrell]

Perhaps a moderator will move this thread to the EXHAUST sub-section.

Instead of buying the $700+ full assembly, cut the cats out of your existing pipes, weld a couple of generic cats back into the original pipes.

Beware that the flange on the back is commonly warped and leaks. May want to make plans for dealing with that before doing anything else.

Generic weld-in cats used to be ~$60; I see lots of choices starting at $80 and up on the Summit site.

I'd love to loose the flange altogether and secure pipes to cats with stainless steel band clamps.