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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 01-23-2011, 07:37 PM   #1
Bill 1ss/rs m6
 
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What size mufflers?

Thinking about buying mufflers for the beast instead of just the muffler delete. What size inlet/outlet? Not sure if it's 2.5 or 3 inches? Also thinking of taking out the resonator as well. Thoughts?
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Old 01-23-2011, 08:18 PM   #2
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just buy a axle back
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Old 01-23-2011, 08:23 PM   #3
Bill 1ss/rs m6
 
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I'm not going that route because I think they cost way to much money. I can buy a couple of mufflers, go to the local muffler shop and spend a couple hundred vs a thousand or so.
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Old 01-23-2011, 08:36 PM   #4
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They are 2.5" in and 2.5" out to the tips.

But what is your goal? Do you want to keep it quieter than the muffler delete? Then it doesn't really make sense to take out just the resonators as it will most likely just add some drone. If you want some better flow then you should take out the entire H-pipe and replace it with an X-pipe. Also, Maryland Speed has some pretty good deals on axlebacks.
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Old 01-23-2011, 08:44 PM   #5
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You can get a good axle back for not a whole lot more than a set of quality universal mufflers and the muffler shop labor. While cat backs do often run in the $1000 neighborhood even brand name axle backs can be had for closer to half that.

To answer your question you will want 2.5 inch inlet and outlet.
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Old 01-24-2011, 09:22 AM   #6
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Kind of depends on what your future plans are as well? 500hp is the over under for 2.5 to 3 inch piping.
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Old 01-24-2011, 09:24 AM   #7
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i think the op has the right idea....

2x 2.5 mufflers = ~$150

sounds better than a muffler delete and will perform the same as an axle back...

and as mentioned before... 2.5" in and out.
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Old 01-24-2011, 02:55 PM   #8
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Quote:
Originally Posted by MileMAN402 View Post
But what is your goal? Do you want to keep it quieter than the muffler delete? Then it doesn't really make sense to take out just the resonators as it will most likely just add some drone. If you want some better flow then you should take out the entire H-pipe and replace it with an X-pipe. Also, Maryland Speed has some pretty good deals on axlebacks.
The resonators typically don't add/subtract drone from the system. Drone is taken care of in the helmholtz tube in the OEM muffler.

OP:
If you're looking for a different sound, i'd suggest getting rid of the resonators and replacing it with a Xpipe. Cruises like stock but has a more aggressive sound when you put the gas to it. If you still want more, add your mufflers or axleback. If you decide to go full catback, know that most already have the Xpipe in it. Apex has some great deals or you can keep an eye out in the "forsale" section.
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Old 01-24-2011, 03:20 PM   #9
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The advantage of an an axle back from a quality supplier is it has been tuned for the application. Many people have put on universal mufflers only to have it sound like crud.

Let someone else do the R & D for you instead of trial and error with universal parts.
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Old 01-24-2011, 04:12 PM   #10
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Quote:
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The advantage of an an axle back from a quality supplier is it has been tuned for the application. Many people have put on universal mufflers only to have it sound like crud.

Let someone else do the R & D for you instead of trial and error with universal parts.
wtf needs to be tuned in an axle back?

there's about 2 feet, total, of exhaust piping there.

not much rocket science there.
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Old 01-24-2011, 04:56 PM   #11
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wtf needs to be tuned in an axle back?

there's about 2 feet, total, of exhaust piping there.

not much rocket science there.
you read that wrong . it wasn't saying tuned as in tune the engine.
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Old 01-24-2011, 04:58 PM   #12
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wtf needs to be tuned in an axle back?

there's about 2 feet, total, of exhaust piping there.

not much rocket science there.
Sound. I know someone that put some universal Flowmasters on a Camaro. The drone rattled your brain.

A muffler shop suggested some Flowmasters that they happened to carry in stock. They were cut off the next day.

I should have said - they fine tune the muffler in the axle back for the application.
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Old 01-24-2011, 05:03 PM   #13
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If you just plan on goin for sound delete the mufflers and it will sound good, if you buy aftermarket mufflers and use your stock piping you will need 2.5 inlet and the out doesnt matter. Delete the mufflers keep the resonaters (sounds the same), ad aftermarket mufflers delete the resonaters. Im just wondering if you will be happy with that or go crazy with mods and what not in the future like some of us thats why I said it depends on your future plans? If you are gonna be making more than 500 at the wheels go with a 3" upgrade headers all the way back. Do it right the first time and plan for the future, just my opinion.
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Old 01-24-2011, 05:11 PM   #14
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Quote:
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Sound. I know someone that put some universal Flowmasters on a Camaro. .
lol

well there's your first problem.
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