Nitrous Express 20939-10 Billet LT4 Supercharger Lid Nitrous System with 10lb Bottle

The Nitrous Express 20939-10 is a complete direct-port style nitrous system featuring a precision-machined billet aluminum supercharger lid designed specifically for GM LT4 superchargers. This innovative system replaces the factory upper supercharger lid, delivering nitrous and fuel directly into each cylinder from within the supercharger housing for optimal distribution and performance gains.

Key Features:

• CNC-machined from solid billet aluminum for superior strength and durability
• Direct-port injection design delivers nitrous and fuel into each cylinder individually
• Single-stage system with jetting for 100 to 300 wheel horsepower gains
• Includes 10lb nitrous bottle for extended run capacity
• 1/8 NPT ports machined directly into lid for easy expansion
• Pre-configured for simple water/methanol injection system addition
• Direct bolt-on installation replaces factory LT4 supercharger lid
• Clean, hidden installation with no external plumbing visible

This system provides a professional-grade nitrous solution for LT4-equipped vehicles including the Corvette Z06, Camaro ZL1, and CTS-V. The billet construction ensures long-term reliability under high-boost conditions, while the integrated design maintains the factory appearance of your engine bay. Perfect for street/strip applications where you want significant power gains with OEM-level fitment and finish.