Universal Internal Disc Series are 3 Chrome Plated Steel internal, disc-based mufflers that utilize our patented Tunable Disc Technology. They are rated top in their class for providing maximum silencing.
Their 3.5 body diameter tapers down to a 2.125 opening. All Universal Internal Disc Series main portion of the body are 12 in length. The overall length of the body including the inlet is 15".
Universal Internal Disc Series with a Tapered End Cap have a 1.75(44.5mm) inlet diameter (ID). It adds another 4" to the exhaust. Twelve, 3 discs are included. Brackets are not included.
Universal Internal Disc Series with a Slash Cut End Cap have a 1.75(44.5mm) ID. It adds another 6" (measuring from the long side) to the exhaust. Twelve, 3 discs are included. Brackets are not included.
Universal Internal Disc Series without an End Cap have a 1.75(44.5mm) or 2.00(50.8mm) ID. Eighteen, 3 discs are included. Brackets are included.
Add 3" discs to increase horsepower, exhaust tone and flow.
Subtract 3" discs to reduce sound and increase low-end torque.
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How do you know which Universal Exhaust will fit your application? Its easy! Click here and well tell you how!
Disc Installation Video
How To Re-Pack a SuperTrapp Exhaust
3" Tunable Disc Accessories
Videos of V-Twins with Internal Disc Series
Where To Locate Part Number on Pipe
Mufflers sold with end caps do not have brackets.
Click any Model # for more details.