Exhaust size

Anything related to the factory RPO Crew Cab.

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DeiselRed
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Exhaust size

Post by DeiselRed »

Hey guys I was wondering if anyone knew the exhaust size of our stock CC's? I think they are 2 1/4 but im not sure. Im looking into a new muffler and want to get the stock measurements right. Thanks
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blakeboys
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Post by blakeboys »

2 1/2" going to the muffler and going out
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Post by DeiselRed »

Before the Cat it is 2 1/2 but after the cat it is 2 1/4. from what I hear :?:
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killian96ss
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Post by killian96ss »

The factory exhaust pipe from the cat to the muffler is 2-1/2" and the tailpipe coming out of the muffler is 2-1/4". :wink:

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Post by DeiselRed »

So if i was going for a flowmaster muffler I would do 2 1/2 in 2 1/4 out?
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blakeboys
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Post by blakeboys »

On my 2002 CC I bought a flowmaster super 44 it was 2 1/2" in 2 1/2" out and it works... sounds damn good without the cats too :D
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Post by killian96ss »

DeiselRed wrote:So if i was going for a flowmaster muffler I would do 2 1/2 in 2 1/4 out?
You have several options.

Install a new 2-1/2" I/O muffler and reuse the factory 2-1/4" tailpipe. You will need a 2-1/2" OD x 2-1/4" ID adapter for the smaller tailpipe.

Install a new 2-1/2" muffler and have a shop custom bend a 2-1/2" tailpipe.

Modify a Flowmaster Force II exhaust system for the S10 extended cabs to fit the CC. This is what I did and it worked out pretty good since the extended cab S10 and CC are basically the same. The only downside is the high cost of the system.

Install a new 2-1/2" muffler and buy the 2-1/2" Flowmaster Force II tailpipe separately. The Flowmaster tailpipe is mandrel bent which increases exhaust flow which makes more power than crush bent pipe that almost all exhaust shops use.

Install a new 2-1/2" muffler and dump it (use a turn down with no tailpipe) to direct exhaust gasses toward the ground. This is the easiest set up, but also the loudest.

Buy a direct fit cat back exhaust system. I know Gibson makes one and I'm sure there are others.

Steve
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Post by F9K9 »

No one has convinced me to change my $180 Flowmaster Delta 40 3" cat back in five years now. :wink:
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killian96ss
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Post by killian96ss »

f9k9 wrote:No one has convinced me to change my $180 Flowmaster Delta 40 3" cat back in five years now. :wink:
Nobody is trying to convince you to get rid of it. :wink:
If you are happy with it, that's all that matters.
Flowmaster says 3" is too big for the 4.3L, but who cares what the experts say right.
I posted this info in the other exhaust topic.
You didn't really pay $180 for a $90 muffler did you? :?:

Steve
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Post by HenryJ »

killian96ss wrote:
f9k9 wrote:$180 Flowmaster Delta 40 3" cat back ...
You didn't really pay $180 for a $90 muffler did you?
Cat back including installation.

The cat is 3" in/out. Not really related but the full size with the 4.3L did get the 3" pipe.

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