I'm away from home right now so I can't be sure, but I think the muffler housings are 20" long with 3.5" inlets and outlets. The inner tube is fairly small, about 3/4" or 7/8" so most of the flow...
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I'm away from home right now so I can't be sure, but I think the muffler housings are 20" long with 3.5" inlets and outlets. The inner tube is fairly small, about 3/4" or 7/8" so most of the flow...
Unique built my pipes with Lobak Spiral core mufflers.
They flow well but are quite loud, especially on my 12.5/1 427.
It can be a problem at some tracks with noise limits.
David