The importance of properly jetting a nitrous system cannot be overemphasized! Whether it's simply adjusting the power level of a street-type kit, or fine tuning each cylinder in a direct port Fogger system, you need to have the right jets on hand. It's important to know that NOS offers a wide range of flare jets to meet your power and tuning needs. Flare jets are the most commonly used jet style in various NOS applications. Funnel jets are typlically used in four and six cylinder Sportsman Fogger kits, motorcycle, watercraft, and snowmobile kits.