stock pipe diameter on 5.3?

[OmniCamaro]

Anyone know for sure the pipe diameter just after the cat? I installed a Borla cat-back and the pipes don't line up well at that joint and I want to get a wider clamp so I don't have to worry about it.

 

I'm thinking 3" but I'm not certain. The stock cat pipe I guess is what it's called.

 

Thanks!

[SouthernSilveradoGuy85]

I can't remember what it was on my '14, but I know it wasn't 3". I want to say it was 2 1/2 for the 5.3 and 3" for the 6.2, but I could be wrong.

[SirenRed16]

I've been told here that the diameter for a 5.3 is 2.75"

 

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[Austin66]

On 5.3s, its 3in just before the 3rd cat and 2.75 thereafter

[OmniCamaro]

OK, looking on Borla's website it actually says 2.75" in, so theres my answer.

 

Thanks fella's!

 

 

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