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Discussion Starter #1
I want to do SpinTech 9000 mufflers on my 2012 R/T 6spd. I've contacted SpinTech and that wasn't any help. So, what I'm asking is, should I buy the 2.5 center in center out muffler? Is this correct?
 

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Yes, 2012 R/T like yours. he just backs it off, never get to see underneath. A Guy
 

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Discussion Starter #5
Yeah I know, I want to know if the muffler is offset so I can buy correct muffler, as of now I still haven't found out. So, I'm thinking I should go to a muffler shop and see if they give me a answer. lol
 

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Spin tech

Yeah I know, I want to know if the muffler is offset so I can buy correct muffler, as of now I still haven't found out. So I'm thinking i should go to a muffler shop and see if they give me a answer. lol


Where are you mounting them? If the factory location you can do center to center 2.5" mufflers. I just bought mufflers and I am having them installed Thursday.

The biggest thing that will help in sound is remove the resonators. Have the mufflers installed. I had a set with long tubes on a GTO supercharged and it really sounded good. There is not too many Hemi guys running SpinTech.

I presently have MPBR exhaust and not to happy with it. Drone isn't to bad. I had no drone with the Spintech, but time will tell.


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It's so funny you mentioned GTO I had a 2006 Impulse blue metallic 6spd, and I wanted to install the SpinTech catback but never did. Yeah, I'm installing them in the factory location, I did the Blastin Bobs delete. So, I think I'm set. I Just want to make sure because I want it done soon.
 

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Spin tech

So I installed the SpinTech 9000 pro street mufflers and posted a video on YouTube. It does drone in 6th gear and I am considering going back to MPBR mufflers. Going to drive a bit to see how it goes.

https://youtu.be/4s24DO3-NUs

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I am unfamiliar with SpinTech mufflers, so I visited its web site.

I found the following description of how they work:

"SpinTech's entropy mufflers provide the most effective sound attenuation in the industry without sacrificing performance power. It's all done by means of a patented spin sound trap, which captures sound vibration energy and turns it into heat energy within the muffler. On size, weight and effectiveness comparison, no other type of muffler works as well. Unlike friction mufflers which have high back-pressure, and absorption mufflers (straight thru type) which are loud and get louder as they wear out, SpinTech's sound trap entropy mufflers have flow rates approaching the straight-thru types, no packing to blow out, and the maximum attenuation of any type muffler at high flow velocities.

HOW SPINTECH ENTROPY MUFFLERS WORK

SpinTech's patented technology is based on the second law of thermodynamics or entropy. The entropy of a system relates to the organization of the system. Sound energy actually represents a form of organized energy in the sense that the molecules of air or gas vibrate together in a unified way. (On a microscopic level these gas molecules bounce off one another like billiard balls). Heat energy is also the vibration of molecules. Heat and sound energy are very much the same except for their organization, or entropy. Heat is a completely randomized molecular vibration, while a sound wave is an organized wave front of vibration.

Flow routing is based on advanced fluid mechanics technology. Vortices are sustained inside of the muffler's spin sound traps. Vent holes are placed in an area where the case wall and the sound trap form a venturi. As gas flows through the vent holes, the reduced pressure extracts gas out of the trap. Incoming exhaust from the main exhaust flow stream refills the trap and maintains the vortex motion that promotes the conversion of sound to heat. Think of it as a Saturn Rocket Inside Your Exhaust System."
 

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Kinda reminds me of the Tesla valve which was developed as a "leaky" check valve for steady flow, fluids systems.

 
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