This is a great addition to anyone’s nitrous kit that may have came 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.