SuperTrapp 5S Spark Arrestor Small Engine Mufflers
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 5" diameter SuperTrapp 5S Series muffler is recommended for engines up to 100 HP, but it can also 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
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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.