Nitrous Express Hoses 13393 4, 6, or 8 cylinder direct port system includes all stainless tubing, B-nuts, sleeves, distribution blocks, all fittings and lines to complete intake manifold, includes 75,150, or 300 HP jets. 4-CYL SHARK PLUMB KIT W/ 2 SOLENOIDS & 75HP JETS, INCL HARDWARE 4-CYL SHARK PLUMB KI