Nitrous Express Shark Nozzles 6-Cylinder (6 nozzles, jet pack) allows you to convert any brand nozzle system to NX and includes all horse power settings. The Shark nozzle system is the most versatile competition nitrous system available today. Features include: gasoline or alcohol enrichment, 4-6-8-10-12 cylinder applications available, power levels as low as 25 wheel horse power and as high as 1200 wheel horse power, 2, 3 or 4 solenoid configurations, lightning 45 bottle valve, 200-300-400-500 jetting included on all competition systems, 100-150-200-250 jetting included on all street systems and distribution options: standard 4 into 1 blocks-fuel injection style rail delivery- showerhead distribution blocks.