pir7tr

iTrader: (23)

On SLPonline.com under the restoration for camaros and firebird link they sell and muffler known as the "quiet" program muffler.

It states that muffler would be a great "replacement and/or spare" muffler.

My question is...

Is this the same muffler that the SLP Dual/Dual system used?

http://www.slponline.com/view_product.asp?P=10572

ChocoTaco369

From the link:

In short, my guess would be YES, this is a Dual/Dual muffler. Good find. $139.95 isn't a bad price either considering the price of the original SLP Dual/Dual exhaust. I think it was in the ~$600 price range.

pir7tr

iTrader: (23)

Im gonna give SLP a call today and make sure...but that was my guess as well.

pir7tr

iTrader: (23)

Just got off the phone with SLP...This muffler is NOT the same muffler as used in the Dual/Dual exhaust system.

This muffler is considerably more quiet explained by the sales rep from SLP.

silverLSWON

iTrader: (16)

thats the SLP installed dual/dual muffler. if u bought a ss or firehawk new with the slp exhaust thats the muffler it came with. if u bought the d/d from new from slp it was called the powerflo system(almost the same but louder muffler) i'm actually looking for a powerflo muffler or complete system right now. i have a factory d/d

ChocoTaco369

I think he's mistaken. You can't really get any quieter than the Dual/Dual muffler without sacrificing flow. I think what he's talking about is the "cone of silence." The factory-installed Dual/Dual exhaust had a plate in one of the tailpipes exiting the muffer. It shrunk the flow down to something like an inch of pipe and it was done because the exhaust was deemed too loud without it on drive-by dB testing.

The aftermarket catbacks DID NOT have the "cone of silence," giving them "a more powerful tone," but still used the same muffler, which is this one. I think he's confusing the factory catback with the catback bought directly from SLP - but it was still the same muffler.

That's my guess.

djsanchez2

iTrader: (14)

Oh yeah i keep forgetting to check to see if i have that damned cone. lol

orangeapeel

iTrader: (18)

The ole cone of silence...lol

pir7tr

iTrader: (23)

I have thought about this as well after reading about that flow reducer...still debating on ordering one though...I might have to give it a shot.. its only $140 bucks

ChocoTaco369

For some reason I thought this was funny

slayer_taunu

iTrader: (3)

original muffler was called 'power flow'... i've never heard of this 'quiet program' mumbo jumbo.

BackinBlack02SS

iTrader: (7)

This man is correct. The dual dual optioned LS1 cars never came with the "cone of silence" anyways.

ChocoTaco369

Yes they did...the catback by itself was too loud as per GM's specification, so they added the cone of silence to the factory-equipped dual/dual cars. The aftermarket dual/dual DID NOT come with the cone. It was louder, and AFAIK called "Powerflo."

BackinBlack02SS

iTrader: (7)

No they did not. The cone of silence was only found in the LT1
2OTL exhaust and maybe some 98 SLP vehicles. The Powerflo muffler was internally different than the stock dual/dual muffler.

EDIT: Did anyone even bother to read the description on the SLP website? "This is the original 2001-02 Camaro SS/Firehawk "quiet" program muffler. Makes a great replacement or spare for your original SLP dual/dual exhaust system. Muffler measures 3" in and dual 2 ½" outlets."

qwikz28

iTrader: (12)

yeah the cone was in the piping leading to the tips... how can only the muffler have the cone?

silverLSWON

iTrader: (16)

SOME d/d mufflers had the RING of silence in the driver side tail pipe whare it bolts to the muffler. but the power flo muffler was different than the d/d muffler. i called slp and asked them. the powerflo muffler is an updated(louder version) of the dual/dual. the ring ust mad the d/d muffler even quieter

warp10

iTrader: (5)

Wow. Some misconception here for sure. Some factory D/D's ahd them (Mine included). I removed it a few years back and this is how the ring of silence looks like:

RedRocketZ28

iTrader: (19)

Warp, did it make your car much louder? I would like to know if mine has it but I really don't feel like taking the exhaust off just to see. Was it difficult to remove?

warp10

iTrader: (5)

Exhaust tone changed slightly to a deeper sound.

Check with a coat hanger to see if there is blockage.

Here ia where you have to cut: