This exhaust is louder than stock and doesn't require a tune

riding at high mountain elevations

you must also include your stock camshafts or cylinder head

If you need to add multiple additional tunes

further extending their life

Torsion Conversion Kit / AC Boss ('16+) Category_Default Category/SXS/Clutching This exhaust is louder thanIf you are serious about performance you need this torsion conversion kit! This kit utilizes a torsion spring from 2004 and previous Arctic Cats (back when Cat had decent clutching!). This spring holds more side tension on the belt providing better grip and power transfer that results in more performance and lower belt temps. The torsion spring can also shift out further before coil binding, providing a nice increase in top speed (2 5 MPH). This