- Increases muffler flow for more performance
Ski-Doo -- Summit Sport 800R P-TEK w/154" Track -- (2014, 2013, 2012); Ski-Doo -- Summit X 800R P-TEK w/146" Track -- (2012, 2009, 2010, 2008, 2011); Ski-Doo -- Summit 800R P-Tek w/154" Track -- (2009, 2008, 2010); Ski-Doo -- Summit X 800R E-TEC w/154" Track -- (2016, 2009, 2008, 2010); Ski-Doo -- MX-ZX 600 RS Snowcross 600 RS Snowcross -- (2010, 2011); Ski-Doo -- MX-Z 600 Sport ACE w/120" Track -- (2011, 2008, 2010, 2009); Ski-Doo -- MX-Z 600 H.O. Sport -- (2010, 2011); Ski-Doo -- MX-Z 600 Sport Carb w/120" Track -- (2010, 2009, 2008, 2011); Ski-Doo -- MX-Z 600 H.O. Sport REV -- (2010, 2011); Ski-Doo -- MX-Z 600 Sport w/120" Track -- (2010, 2011); Ski-Doo -- Summit X 800R E-TEC w/163" Track -- (2009, 2010, 2008); Ski-Doo -- Summit 800R Everest P-TEK w/146" Track -- (2010, 2011, 2008, 2009); Ski-Doo -- Summit 800R Everest P-TEK w/154" Track -- (2010, 2008, 2009, 2011); Ski-Doo -- Summit 800R Everest P-TEK w/163" Track -- (2010, 2009, 2011); Ski-Doo -- MX-Z 600 TNT w/120" Track -- (2010, 2011, 2012); Ski-Doo -- Summit 800R 50th Anniversary P-TEK w/154" Track -- (2009); Ski-Doo -- Summit 800R X-RS Hillclimb Edition P-TEK w/154" Track -- (2010); Ski-Doo -- Summit X 800R E-TEC w/146" Track -- (2009, 2008, 2010); Ski-Doo -- Summit 800R SP E-TEC -- (2011); Ski-Doo -- Summit 800R Hillclimb Edition P-TEK w/154" Track -- (2009)