Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/12lb Bottle

Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/12lb Bottle

Marsoni

M251S

$1403.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Nitrous Express 4150 Assassin Plate Stage 6 Nitrous Kit (50-300HP) w/12lb BottleAssassinate the competition with the Assassin plate system. The Assassin is the most technically advanced single stage plate ever designed. The CNC machined design integrates the nitrous and fuel discharge ports into the outer perimeter. The Assassin offers a unique perimeter spray pattern that assures perfect nitrous fuel distribution. Which in turn solves the problems commonly found on single plane manifolds, particularly small and big block Fords.

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Honestly I didn't think this ball would last but 2 years later and only one battery change later and it is going strong. This ball has given me so much more time to play with my dog since I can throw the ball at night on short winter days I can't recommend it enough. I can throw the ball at night and my dog can find it in the dark. Add a collar LED and it's a funny light show of one light intercepting another.

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Reviewed in the United States on February 26, 2026