NOS Dry Nitrous Plate System for Holley Hi-Ram LT Manifolds

The NOS Dry Nitrous Plate System for Holley Hi-Ram LT Manifolds is a purpose-built, bolt-on nitrous solution engineered specifically for GM Gen-V LT engines equipped with a Holley Hi-Ram EFI intake manifold. Backed by decades of race-proven NOS heritage, this sandwich-style plate system installs cleanly between the upper and lower Hi-Ram manifold sections without cutting or permanent modifications — delivering serious power gains with a straightforward bolt-on process.

Billet Construction & Precision Engineering:

• CNC-machined from billet 6061-T6 aluminum for maximum strength and precision fitment
• Laser-etched NOS branding reflects authentic race-proven heritage
• Anodized finish provides excellent corrosion protection and lasting good looks
• One-piece design with passages machined directly into the plate — no spray bars to break, spin, or fall out of alignment under high-stress conditions

Proven Performance:

• Machined internal passages deliver nitrous precisely into the center of each cylinder runner for consistent, balanced power distribution
• Includes jetting for up to 250 horsepower in 50 hp increments right out of the box
• Capable of supporting 1,000+ horsepower with separately available jets for serious high-output builds
• Dry single-stage design integrates seamlessly between the Hi-Ram manifold's upper and lower sections

What's Included:

• NOS nitrous plate
• Gasket
• Jet holders
• Jets (up to 250 hp configuration)

NOS has been at the forefront of nitrous performance for decades. The Hi-Ram LT plate series continues that tradition with engineering trusted on the street and at the track. Available in multiple finish options to suit your build, this product line delivers reliable, repeatable power gains with a clean, integrated installation.