Nitrous Express Direct Port Water Injection 8 Cyl Stage 3 w/Hardlines (15132H) 1638 1989 GMC R1500 Suburban Special

1989 GMC R1500 Suburban Special Comments: 2WD/4WD

Utilizes Dual Loop Design To Reduce Drone

- Delivers dyno proven performance gains - increase horsepower +8 whp

The HPS Performance Hot and Cold Side Charge Pipe Kit is the essential upgrade engineered to replace the factory charge pipe system

Nitrous Express Direct Port Water Injection 8 Cyl Stage 3 w/Hardlines (15132H) 1638 1989 GMC R1500 Suburban SpecialNX direct port water methanol systems inject the water methanol mixture directly into each intake runner providing excellent distribution to each cylinder. These systems include a high pressure electric pump, high pressure push lock hose, filtered nozzles, nickel plated fittings and a composite reservoir. Stage one systems include a wide open throttle activation switch while stage 2 and stage 3 systems include digital progressive controllers that