stock exhaust size

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Apr 23, 2018 | 09:41 PM

cableguy123

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stock exhaust size

what is the stock exhaust size for 2015 silverado 5.3? inlet/outlet

Apr 23, 2018 | 09:44 PM

FFDP

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From: Rogers, MN

If it didn't change much from the previous platform it's like a 3in OD pipe, so slightly smaller inside. The 6.2's got larger piping.

Crawl under the truck with a caliper to get exact numbers.

Apr 23, 2018 | 09:52 PM

cableguy123

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thanks. id have to buy one. im gonna be swapping out my existing exhaust for a flowmaster but keeping the stock pipes

Apr 24, 2018 | 12:51 PM

Atomic

I have a gauge for that

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From: Huntsville, AL

I think stock is like 2.75", but most guys use 3" aftermarket stuff.

May 5, 2018 | 05:20 PM

_Nomad_

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From: Frankenstein never scared me. Marsupials do, because they're fassst…and they DART, THAT'S crazy!

The 5.3 has a 2.75" OD pipe.

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