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STEP 1: ACOUSTA-FIL
Acousta-Fil is a product used to silence a motorcycle exhaust. It's a sheet of PTX yarn that's placed inside the silencer between the inner perforated tube and the silencer’s outer casing. When the exhaust is heated, the yarn expands to fill empty spaces, improving on silencing capabilities by breaking up sound waves.

Ways to Reduce Exhaust Noise: About
Ways to Reduce Exhaust Noise: About

STEP 3: LONGER EXHAUST
This is the most expensive option but sound reduction cannot go much further without getting a longer exhaust. A longer exhaust provides more space to fit mufflers, hence, are better at breaking up sound waves. Go to "Mechanical Shops in HCM" section to find your suitable exhaust.
Ways to Reduce Exhaust Noise: About
Ways to Reduce Exhaust Noise: Quote
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