The range of adjustability is from 65 to 102 grams

Additional tunes are $50 each

If it cannot be fixed we will supply you with a new one

and a primary spring

Exhaust: BMP Performance Exhaust

Air Intake Big / Matryx 100049 Category_Default Category/SLED/Clutching/Yamaha Sled Clutching The range of adjustability isUpgrade your Polaris Patriot Boost, 9r, and 850 with a BIG air Intake. Boost your power and improve air flow with this modification for optimal results. Elevate your ride to the next level and dominate any terrain. Get ready for an unbeatable riding experience. This modification is a must have for any matryx snowmobile. These machines are highly susceptible to powder bog in deep snow, especially big power machines. This happens when the air intakes