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SuperTrapp Spark Arrestor Mufflers for Small Engines

SuperTrapp mufflers are the only USDA Forest Service Approved spark arrestors that do not rely on restrictive swirl baffles or fragile screens. Sparks are funnelled into a collection chamber in the end cap, while exhaust gases exit between special diffuser discs. Even if the collection chamber filled to capacity, the small 0.023" gap between the discs still provides a back-up layer of spark protection.

The 3" diameter SuperTrapp 3S Series muffler is recommended for engines up to 10 HP, but it can be used on engines up to 50 HP where compact size is a greater concern than noise reduction.
The 5" diameter SuperTrapp 5S Series muffler is recommended for engines up to 100 HP, but it can be used on engines up to 200 HP where compact size is a greater concern than noise reduction.

SuperTrapp 3S vs. 5S Comparison and Technical Data

SuperTrapp 3S Series Spark Arrestor Small Engine Mufflers
SuperTrapp 3S Series Spark Arrestor Small Engine Mufflers
SuperTrapp 5S Spark Arrestor Small Engine Mufflers
SuperTrapp 5S Spark Arrestor Small Engine Mufflers

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SuperTrapp 3S Series Resonator with long J-Bolt
SuperTrapp 3S Series Resonator with long J-Bolt

This SuperTrapp 3S Series resonator is optional for the SuperTrapp 3s Series Spark Arrestor Mufflers. It reduces noise by 3 to 5 dbA without affecting power.

5 inch Diffuser Discs for SuperTrapp 5S Series, 3-pack
5 inch Diffuser Discs for SuperTrapp 5S Series, 3-pack

These Diffuser Discs fit all SuperTrapp 5S Series mufflers. Use 1 disc per 7 HP for proper backpressure. Fewer discs will reduce noise, but also power output.

3 inch Diffuser Discs for SuperTrapp 3S Series, 3-pack
3 inch Diffuser Discs for SuperTrapp 3S Series, 3-pack

This is a pack of 3" Diffuser Discs for the SuperTrapp 3S Series Spark Arrestor Mufflers. Typical installations should use 1 disc per 3 horsepower for proper back pressure.