The Nitrous Express Assassin plate conversion for 4150 flange, Stage 6, updates a compatible intake to Assassin-style perimeter discharge performance. This Stage 6 conversion provides the CNC-machined perimeter ports and mounting configuration for a 4150 flange, allowing installers to adopt the Assassin plate’s improved atomization and distribution characteristics without changing the rest of the intake assembly.

Nitrous Express Assassin Plate Conversion 4150 Stage 6