Frequency Modifying Muffler
Freq Mod Muffler
Now available!
Order the Freq Mod Muffler now!
 Change the way you think your car should sound forever! The Freq Mod™ is a
new patent-pending design that works to change the frequency of your exhaust
to make a sound that is all your own.

    The Freq Mod® uses a system that increases the frequency and pitch of your
exhaust system. Using this frequency modifier muffler can make a 4-cylinder
sound like a rotary, and an 8-cylinder sound like an Italian exotic. We all have
a general idea the way a car will sound based on it’s motor configuration. With
the Freq Mod®, you can forget about that.

    The Freq Mod® is still a high performance muffler and will out-flow many
comparable mufflers, but gives you the sound you’ve been craving to stand out
at the next cruise event, track day, or dyno day.

*Patent Pending*