mqdirtracer57
12-27-2010, 10:19 AM
I have Beyea Headers on my crate car. My track now requires mufflers. Which muffler is the quietest,but most efficient? Car cannot be louder than 100 Db
sj valley dave
12-27-2010, 04:48 PM
Extreme Mufflers in Ventura, CA work great. Will get our 422 SBC under the state 95 db @ 100 foot rule and flow really well. Here in CA we have a state db limit and they did a lot of research into them....
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