I want more power and less sound from a muffler.
02-20-2007, 07:25 PM
#1
I want more power and less sound from a muffler. Ok, so from looking at the sig below you should be able to get a pretty good feel for what I am running, mods wise. I have Jethot 1 3/4 long tubes that come to 3" true duals and have 2 chamber (2 bends) "turbo mufflers" w/ turn downs right before the axles. They look like bullets but they aren't. I have no h or x pipe.
I think that these mufflers are restrictive but they are still too loud. Could someone please recommend a way to quite this car down and improve exhaust flow? For the mathmaticians, it has a 402ci block, makes 500 rwhp thru the current exhaust, and about 675 w/ the 150 Shot. I have no back seats and don't intend on ever putting them back in. I say this because if I need space to put something bigger down there, I have the BFH mod ready and willing to use in order to make some space under there. Open to all suggestions including multiple mufflers on each bank.
I think that these mufflers are restrictive but they are still too loud. Could someone please recommend a way to quite this car down and improve exhaust flow? For the mathmaticians, it has a 402ci block, makes 500 rwhp thru the current exhaust, and about 675 w/ the 150 Shot. I have no back seats and don't intend on ever putting them back in. I say this because if I need space to put something bigger down there, I have the BFH mod ready and willing to use in order to make some space under there. Open to all suggestions including multiple mufflers on each bank.
02-20-2007, 08:36 PM
#5
Get the one chamber Flowmaster Delta Force mufflers. The 5.5" short stubby ones. I put mine in the little indentions under the rear seats with some small BFH'ing for the tubes. Much quieter and better tone than my short Sweet Thunders.
And get an X also.
And get an X also.
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02-21-2007, 07:06 AM
#9
Originally Posted by 02silvaZ
no personal experience but i have heard people talk about the magnaflow bullet mufflers
I would think that bullets would be louder. Remember, these look like bullets but they are not straight thru mufflers. The exhaust actually make 2 turns in there.
02-21-2007, 07:09 AM
#10
Originally Posted by 1CAMWNDR
Get the one chamber Flowmaster Delta Force mufflers. The 5.5" short stubby ones. I put mine in the little indentions under the rear seats with some small BFH'ing for the tubes. Much quieter and better tone than my short Sweet Thunders.
And get an X also.
And get an X also.
I just looked up those single chamber deltas and they show that they only reduce sound by a small amount on the flowmaster website. Again, I want stealth. I don't care if I have to go to a dual 5" exhaust in order to make it breath and be quiet.
02-21-2007, 07:12 AM
#11
Originally Posted by Beast96Z
SLP bullets or the magnaflows should do the trick.
02-21-2007, 02:38 PM
#12
Originally Posted by 98Z28CobraKiller
I just looked up those single chamber deltas and they show that they only reduce sound by a small amount on the flowmaster website. Again, I want stealth. I don't care if I have to go to a dual 5" exhaust in order to make it breath and be quiet.
02-21-2007, 02:50 PM
#13
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Originally Posted by 1CAMWNDR
Well, I didn't see stealth anywhere in your first post. But, a quiet/stealth 500hp 402? You're kidding right?
I would think about putting 2 mufflers in line
02-21-2007, 02:51 PM
#14
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Originally Posted by 98Z28CobraKiller
SLP Bullets is what I started out with. Way too loud. Like twice as loud as my current setup. I couldn't hear myself think in the car. Guys, I am looking for quiet first, then flow. But it has to flow even if I have to go up in size.
02-21-2007, 02:56 PM
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Originally Posted by 98Z28CobraKiller
I just looked up those single chamber deltas and they show that they only reduce sound by a small amount on the flowmaster website. Again, I want stealth. I don't care if I have to go to a dual 5" exhaust in order to make it breath and be quiet.
02-22-2007, 09:41 AM
#20
Originally Posted by lilbuddy1587
Oval Borla XR-1's. Flow 1100+ CFM and are one of the quietest mufflers until WOT.
One of the quietest versus the other straight thru mufflers or versus 2 and 3 chamber mufflers? I can't see how a straight thru muffler could be quieter than my 2 chambers.