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Twin turbo exhaust note.

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Old May 24, 2018 | 05:57 AM
  #21  
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I just started my small twin (61's) and to my surprise it sounds good. Its rich at idle so that's making it sounds pretty good.
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Old May 24, 2018 | 11:06 AM
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My buddy just had the same issue. Switched from a single S480 with a 5" fender exit and went to twin 3.5" S366's fender exits. The first words out of his mouth were, "It sounds like an old dump truck. I HATE it!" Not sure why these engines sound so horrible when you go twins out the front but the big singles sound fine.
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Old May 24, 2018 | 11:15 AM
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Dynomax makes a small 3 inch bullet style muffler..... I didn’t like the open exhaust note and always used it.... only $20 bucks and easy to package and takes that open header “crack” away
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Old May 24, 2018 | 12:00 PM
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They can't possibly sound more like a dump truck than an SRT 4 with exhaust, can they? Those things would literally fool people that the truck is coming down the road.
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Old May 24, 2018 | 12:40 PM
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Originally Posted by 47ford
Dynomax makes a small 3 inch bullet style muffler..... I didn’t like the open exhaust note and always used it.... only $20 bucks and easy to package and takes that open header “crack” away
happen to have a link?
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Old May 24, 2018 | 01:13 PM
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Im pretty sure they are called the Dynomax mini bullets
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Old May 24, 2018 | 02:37 PM
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Originally Posted by Cwarta

happen to have a link?
https://www.summitracing.com/parts/wlk-24250 <-- Link to mini bullets.

I had full size 3.5" bullets on my car last year and it sounded really nice but my exhaust ran to my back tires almost like side pipes and the mufflers were 6" from the turbo so a lot more pipe. Not sure how it would have sounded with a shorter pipe.
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Old May 24, 2018 | 02:44 PM
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In general bullets don’t muffle much. Hooker max flows are about as good as it gets as far as flow VS decibel output... if you can fit them.
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Old May 28, 2018 | 07:28 AM
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Looking at your set up the solution may be super easy. Im willing to bet the dumps are 100% separate? if you can get any kind of merge on them (think x pipe) it should sound SIGNIFICANTLY better. Best for sound only would be the merge the 2 3' into a single 4' and send that out one side.

Good luck
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Old May 29, 2018 | 06:42 PM
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I liked my twin side exit with 3" bullets.
I'm going to twin 3.5 side exits with 2 mini bullets in each side
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Old Jun 1, 2018 | 07:18 PM
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So I ordered a pair of the mini bullets part# 24250 & these things are pretty small. Not sure how much, if any, these will tone down the exhaust. Once I weld them on ill post a sound clip
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Old Jun 1, 2018 | 08:18 PM
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Originally Posted by MM98


So I ordered a pair of the mini bullets part# 24250 & these things are pretty small. Not sure how much, if any, these will tone down the exhaust. Once I weld them on ill post a sound clip
they take the sharp edge off
thats about it
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Old Jun 1, 2018 | 09:33 PM
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Post a before and after!
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Old Jun 2, 2018 | 11:20 AM
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Yep, put a straight thru bullet muffler like pictured above in each downpipe. I have an LS3 with a single COMP billet 82mm and 4" downpipe. It sounded like a tractor with just a pipe for exhaust. Added a bullet muffler and it got MUCH better.
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Old Jun 2, 2018 | 09:47 PM
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Like everyone has already said, any kind of muffler does a really good job of getting rid of that greasy tractor sound.
Looking forward to hearing a comparison!!
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Old Jun 21, 2018 | 10:47 PM
  #36  
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Any updates/video on these mini bullets being installed? I was wanting to run the same bullets with my twin set up just to tone down the dump truck sound. It's all still in the works so I've got time before needing exhaust ran. I was thinking of running the downpipes to a "X" and then to mini bullets before exiting under the front of the fender.
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Old Jun 22, 2018 | 08:48 AM
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I finished it up last Saturday & keep forgetting to get a vid of it. I'll try & post one up tonight. As far as sound, it kinda took the poppy crack sound off at idle. Still sounds like *** IMO while cruising at a steady rpm. WOT is stupid loud, don't really even hear the turbos, but doesn't sound bad.
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Old Jun 22, 2018 | 08:54 AM
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I’m actually happy with mine, cruising isn’t bad at all with windows down and t tops off, sounds like a dump truck at idle as stated, but I feel like it would be fine if I had a cam.

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Old Jun 23, 2018 | 09:20 PM
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Here’s a little idle clip from today


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Old Jun 24, 2018 | 02:19 AM
  #40  
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Both of those don’t sound so bad. I bet it’s loud in person though lol.
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