**These are only recommended sizes for our cars. You should still try to get an AFR reading from your car and make sure it's where it needs to be.**

Single Nozzle Wet System Jetting

Nitrous Express
31N/18F 35HP
35N/20F 50HP
41N/24F 75HP

TNT
39N/22F 50HP

Nitrous Oxide Systems
34N/18F 40HP
37N/22F 50HP
39N/24F 60HP
41N/26F 70HP
43N/28F 80HP
46N/30F 100HP
52N/33F 125HP
61N/38F 150HP


Single Nozzle Dry System Jetting

Nitrous Oxide Systems
34N/44F 40HP
32N/42F 50HP
34N/42F 60HP
41N/36F 70HP

Zex
32N/36F 55HP
35N/34F 65HP
38N/32F 75HP



Direct Port Wet System Jetting

Nitrous Express using 44psi @ the fuel rail
20N/12F 50HP
24N/14F 75HP
26N/16F 100HP
31N/18F 150HP