Impulse Emission Vapouriser muffler uses a row of steel plates that are heated up by the exhaust gases to 600-800°C (1100-1500°F) which vapourises toxic emissions and increases power while the narrow space between the plates reduces noise

This produces such a high temperature inside the Impulse EV muffler it effectively vapourises the toxic emissions as they pass between the plates. As a result it reduces the toxic emissions to near ZERO. However, to achieve this high temperature the row of plates have a specific thickness, spacing and length.

For example,

If the thickness, spacing or length of the plates is increased or reduced from optimum it substantially reduces the temperature of the plates and their effectiveness to vapourise toxic emissions. This also happens if a larger EV muffler is used in a smaller size exhaust system.

Therefore, 1) the row of steel plates in the Impulse EV muffler require a specific thickness, spacing and length and 2) the EV muffler needs to be the same size as the exhaust system to achieve the high temperature needed to effectively vapourise toxic emissions.

This is the same reduction in noise produced by a typical reverse flow or tri-flow muffler with a large housing. However, the Impulse EV muffler is much smaller like a hot dog or cherry bomb muffler and can be fitted to any part of the exhaust system.

Therefore, by using 1-4 EV mufflers in a single exhaust system the noise may be reduced by 5-20dB or 36-144%. This allows using a noisy straight through performance muffler in conjunction with 1 or several Impulse EV mufflers to further increase power and fuel mileage while reducing noise to the same level as standard restrictive mufflers or to any level desired.