The NXd Stacker 4 diesel nitrous kit with a 15 lb bottle from Nitrous Express supplies a controlled nitrous boost to raise horsepower and torque while reducing exhaust temperatures and black smoke on modified diesel pickups. Presented as a safe, low-cost performance add-on, the Stacker 4 builds on Nitrous Express’s next-generation Stacker technology to provide reliable, proven horsepower increases for diesel applications.

Nitrous Express Diesel Stacker 4 Nitrous Kit w/15lb Bottle