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Billet Head Kit - High Altitude - Matryx 9R - Polaris 04-318-H-900 Polaris -- Patriot Boost RMK 850 KHAOS Matryx Slash 2.75" w/155" Track -- (2023, 2024); Polaris -- Patriot Boost Switchback 850 Assault 2" w/146" Track -- (2023); Polaris -- Patriot Boost...

Increase cooling capacity for lower running temps which helps maintain peak powerLow altitude gains 4-5 mid range horsepower and 2-3 peakHigh altitude riders gain 6-7hp in the mid range, and 4-5 peak Polaris -- Rush 800 Pro-S LE 1.35" w/120" Track --...

Increase cooling capacity for lower running temps which helps maintain peak powerLow altitude gains 4-5 mid range horsepower and 2-3 peakHigh altitude riders gain 6-7hp in the mid range, and 4-5 peak Polaris -- SwitchBack 800 Assault 1.35" w/144" Track...

Increase cooling capacity for lower running temps which help maintain peak power Arctic Cat -- 800 C-TEC2 -- (2018)

Increase cooling capacity for lower running temps which help maintain peak power Arctic Cat -- 800 C-TEC2 -- (2018)

Increase cooling capacity for lower running temps which helps maintain peak powerLow altitude gains 4-5 mid range horsepower and 2-3 peakHigh altitude riders gain 6-7hp in the mid range, and 4-5 peak Arctic Cat -- F800 -- (2015, 2016, 2010, 2017, 2012,...

Increase cooling capacity for lower running temps which helps maintain peak powerLow altitude gains 4-5 mid range horsepower and 2-3 peakHigh altitude riders gain 6-7hp in the mid range, and 4-5 peak Arctic Cat -- M Chassis -- (2007, 2008, 2009); Arctic...

High quality rings which allow for optimum heat transfer and sealing KTM -- 300 EXC -- (2006, 2004, 2008, 2007, 2009, 2012, 2005, 2011, 2016, 2015, 2014, 2010, 2013); Husaberg -- TE 300 -- (2012, 2014, 2013, 2011); Husqvarna -- TE 300 -- (2014)

High quality rings which allow for optimum heat transfer and sealing KTM -- 150 SX -- (2012, 2013, 2011, 2015, 2009, 2010, 2014); KTM -- 144 SX -- (2008)

High quality rings which allow for optimum heat transfer and sealing Husqvarna -- TC 125 -- (2020, 2017, 2016, 2014, 2015, 2019, 2018); Husqvarna -- TE 125 -- (2014, 2015, 2016); Husqvarna -- TX 125 -- (2017); KTM -- 125 SX -- (2020, 2008, 2015, 2007,...

High quality rings which allow for optimum heat transfer and sealing KTM -- 50 SX -- (2020, 2010, 2015, 2016, 2012, 2013, 2009, 2011, 2014, 2017, 2018, 2019); KTM -- 50 SX Junior -- (2009); KTM -- 50 SX Mini -- (2013, 2014, 2010, 2020, 2012, 2019, 2009,...

High quality rings which allow for optimum heat transfer and sealing Polaris -- RMK 800 w/136" Track -- (2003, 2005, 2002, 2004); Polaris -- Indy Storm 800 SKS -- (2003); Polaris -- Indy XC 800 SP -- (2001, 2002, 2004, 2003, 2005); Polaris -- SwitchBack...