This is a great addition to anyone’s nitrous kit that might have come with a -4 line set up. Most kits sold with a -4 line are limited to around 250 HP. Going to this I-S upgrade line kit will help better support the nitrous side of any kit, as well as raise flow potential to as much as 400 HP. Please remember though, HP gains will also depend on system configuration too.
This kit includes a -6 by 14-foot nitrous line, -6 bottle nut and new PTFE washer, as well as a new 1/4 NPT by -6 FILTERED fitting for the inlet side of your nitrous solenoid. These parts bought separately are well over $140.00.