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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

Related Technical Documents

SuperTrapp 3S and 5S Spark Arrestor Mufflers

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3 inch Diffuser Discs for SuperTrapp 3S Series, 12-pack
3 inch Diffuser Discs for SuperTrapp 3S Series, 12-pack

SuperTrapp 3S Series Spark Arrestor Mufflers should use 1 of these diffuser discs per 3 horsepower for proper back pressure. Fewer discs results in reduced noise, but also reduced power.

SuperTrapp 2.00" Clamp-On Flange with End Cap for 3S Series
SuperTrapp 2.00" Clamp-On Flange with End Cap for 3S Series

This Clamp-On Flange with an end clamp is for a 3S Series SuperTrapp muffler. Fits a 2" diameter exhaust pipe, and includes a clamp, end cap with collection chamber, and center retaining bolt.

SuperTrapp 1.00" Clamp-On Flange with End Cap for 3S Series
SuperTrapp 1.00" Clamp-On Flange with End Cap for 3S Series

This Clamp-On Flange with an end clamp is for a 3S Series SuperTrapp muffler. Fits a 1" diameter exhaust pipe, and includes a clamp, end cap with collection chamber, and center retaining bolt.