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Discussion Starter #1
Anybody using Dynomax Bullet race mufflers? Looking at the 3.5" inlet & outlet directly on the header. Do they cut the sound a bit? Any performance difference?
 

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I run them when I'm at the track, but mine are 4". They are loud, but actually do tone it down a lot over open headers. Runs just as fast with them as it does without them.
 

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It cuts the sound down a lot until you get on the gas for your burn out. They have a nice deep tone. We had them off the other night and fired it up and decided we liked it better with. This might help.

http://www.streetfire.net/video/3-runs_714134.htm
 

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Discussion Starter #5
That's what I want, to tone it down when working on it in the pits, but not a wot.
Thanks
 

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I run the 4" on the street and @ the track. Not to bad until you crack it. never been bother by the cops. I also run Dynomax collectors. 598 BBC 12.1 comp w/ .780 lift cam. Heres 2 sound clips.



 
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