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SuperTrapp 2.75" Clamp-On Flange with End Cap for 5S Series

Click for a larger picture of SuperTrapp 2.75" Clamp-On Flange with End Cap for 5S Series

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. An optional 5S Series Resonator (Part No. ST-5S-5500, not included) can be added to further reduce noise by 4 to 6 dbA without affecting power. The 5S can also be installed after a conventional muffler in installations where maximum muffling is required. In fact, it can be tuned so quietly that mechanical engine noise may drown out the exhaust note!

This kit includes a clamp-on flange to fit a 2 3/4" diameter exhaust pipe, clamp, end cap with collection chamber, and center retaining bolt.

Requires diffuser discs, sold separately:
3-Pack of 5 inch Diffuser Discs (Part No. ST-5S-6503)
Typical installations should use 1 disc per 7 horsepower for proper back pressure (e.g., an 85 HP engine should use 12 discs). Using fewer discs will further reduce noise but will also cause some power loss. More discs should be used on engines rated below 2400 rpm, or if the 5S will be used in conjunction with an existing muffler.

Note: The SuperTrapp 5S Series has been discontinued. Remaining stock on hand is the last available. When they sell out, we will not be able to get any more.

Qty
Part No.
Price
Stock Status
ST-5S-2750

Condition: New

$97.99
In Stock