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The NX Covert Crossbar Stage 6 plate conversion for a 4150 flange is a plate-style nitrous conversion specified for 50–300 HP applications. It replaces a conventional nitrous spray-bar assembly with a crossbar plate that installs at the carburetor flange, offering a streamlined way to add staged nitrous power to compatible 4150-style carburetor setups.
Nitrous Express Covert Crossbar Stage 6 Plate Conversion (4150 Flange) 50-300HP
