What is exhaust pipe resonance during throttle release?

[CatherineAnn]

Exhaust pipe resonance during throttle release can be addressed by modifying the muffler to a single-stage backpressure configuration. Exhaust pipe resonance: The muffler can be modified to a single-stage backpressure setup while placing steel wool inside the muffler. After this modification, the muffler's vibration frequency will change from vibrating three times per exhaust cycle to vibrating once. Additionally, the steel wool can absorb some of the exhaust gas energy, but the steel wool's vibrations won't transfer to the muffler housing. Muffler service life Therefore, after modification, the muffler housing will experience significantly fewer vibrations compared to before. Moreover, the modified muffler's service life will be doubled. This modification method can also be applied to construction machinery and agricultural equipment. With absolutely no moisture inside the modified muffler, it will never rust internally. If the steel wool near the exhaust port is compressed to block dust, it can reduce PM2.5 emissions by more than 20%.