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Magnaflow glasspack vs dynomax race bullet

Old 12-01-2013, 07:09 PM
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Default Magnaflow glasspack vs dynomax race bullet

I was wondering if I could get some feedback on these two ? I had flowmaster 40 series on my 68 truck with a 5.3 with stock manifolds and true duals and I switched to magnaflow turbo style mufflers and they are just too quiet for my liking. I haven't heard either of these two in person and was wondering what the opinions were. Thanks in advance.
Old 12-01-2013, 09:50 PM
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I've had both on my old WS6. The Magnaflow sounded more "refined". Here's the car with the Dynomax bullet-
And here's with the Magnaflow bullet, I'm not sure if you can tell any difference just by these two video's but in actual person and everyday driving the Magnaflow sounded a lot better-
Old 12-16-2013, 09:04 AM
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I ended up going with the magnaflow bullet. I'm really happy with it.
Old 04-14-2014, 06:04 PM
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I know this is old, but are you guys referring to the actual magnaflow glasspack as the "bullet" or are you referring to the magnaflow round mufflers. I imagine there is a difference in sound between the two. I would think the magnaflow will sound better then the dynomax also.
Old 04-14-2014, 06:13 PM
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Are you referring to the 14419 Magnaflow bullet muffler?
Old 04-14-2014, 06:17 PM
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Originally Posted by HCI2000SS
Are you referring to the 14419 Magnaflow bullet muffler?
I'm actually looking at the 18129: http://www.summitracing.com/parts/mpe-18129/overview/
Old 04-14-2014, 06:22 PM
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Originally Posted by LT1TA
Gotcha! Reason I asked is because i'm running the 14419, and really like it
Old 04-14-2014, 06:26 PM
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Do you have any sound clips? I am on the fence because if I pay $80 for one, I may as well pay a little more for the XR1.
Old 04-14-2014, 06:31 PM
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No, all my clips are of me racing my buddy's Cobra lol! I need to make some. You have long tubes and ORY?
Old 04-14-2014, 06:46 PM
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lol, can't go wrong with that either. Right now I have straight pipes off twin turbos, but I am going to be redoing it all. I am not going to be driving it for a long time anyway so I have plenty of time to research. But there aren't many turbo references under the axle.
Old 04-14-2014, 09:16 PM
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Actually the only way to accurately compare the Borla and Magnaflow round mufflers is to compare the Borla XR-1 #40085 with the Magnaflow#12867 since they're both almost exactly the same size(3" in/out, 5"dia. case, 14-15" case length).
Old 04-15-2014, 02:20 AM
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interesting, so when you have all of the different part numbers, does the sound quality vary much or are the sounds the same per length relatively?
Old 04-15-2014, 06:21 PM
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Those two mufflers I listed will sound very similar, as far as how loud they are and tone.
The difference will be mainly from amount and type of packing material used in them. IMO, the Borla does use a better quality(longer lasting) packing material than the Magnaflow does, but the Magnaflow case construction does seem better than the Borla to me.
Old 04-16-2014, 01:59 PM
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The standard bullets by Magnaflow and dynomax are identical. Meaning they are probably made by the same company except Magnaflow are about $40 more expensive.


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