SPEEDWERX'S NEW Lightweight Mufflers are 6 to 12 lbs. lighter than the OEM parts, depending upon your model. All of the company's mufflers are designed to reduce weight while keeping sound levels as low as possible. They have more bark than stock units, but don't cross the line to obnoxious. In other words, they won't make you the "loud friend" nobody wants to ride with. The mufflers use the stock outlet location and require no major chassis modifications for installation (See AmSnow's Jan. '09 How-To, p. 46).
All mufflers come standard painted with high-temp black paint, and most come with installation instructions, if needed. You also can upgrade to a ceramic coated version for better heat management. Applications include most Arctic Cat models 2001-'09 and most Polaris models 1999-2007.
Cost is $209-$250, depending on model. Ceramic coated costs $314-$355, depending on model. All these mufflers are made in the U.S.
More info: speedwerx.com, 651-982-6020
Note: Speedwerx recently changed name from Lightweight Mufflers to Powder Advantage Light Weight Muffler in order to avoid confusion.