The Nitrous Express four-cylinder Vortec Pro-Mod kit with a 2.5 lb bottle is a direct-port solution tuned for four-cylinder Pro-Mod applications. It features four Vortec stainless steel nozzles and a 2.5 lb bottle to support aggressive nitrous staging. This kit is aimed at builders seeking a robust direct-port Vortec-style installation for high-output four-cylinder setups.

Nitrous Express 4 Cyl Vortec Nitrous Kit (Pro-Mod) w/2.5lb Bottle