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Shop ZEX Nitrous Systems — Power Delivered On Demand
ZEX Performance Upgrades — Built for Serious Boost
Unleash Your Ride — Shop ZEX Nitrous at Ozkonic Kustomz
Precision Nitrous. Proven Power. Shop ZEX Now
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Vendor:Holley255 LPH Fuel Pump Repl. For Retro Fit Fuel Tanks
- Regular price
- $249.95 USD
- Regular price
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$312.43 USD - Sale price
- $249.95 USD
- Unit price
- per
Fuel Pump - Retrofit - Electric - In-Tank - Replacement Pump - 255 lph at 60 psi - 1/4 in NPT Outlet - Gas - Each -
Vendor:Holley255 LPH Fuel Pump Module 64-70 Mustang OEM Tank
- Regular price
- $511.95 USD
- Regular price
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$597.28 USD - Sale price
- $511.95 USD
- Unit price
- per
Fuel Pump - Electric - In-Tank - 255 lph - Ford Mustang 1964-70 - Each -
Vendor:Holley255 LPH Retrofit Fuel Pump Assy. Return Style
- Regular price
- $665.95 USD
- Regular price
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$832.43 USD - Sale price
- $665.95 USD
- Unit price
- per
Fuel Pump - Electric - In-Tank - 255 lph - 1/4 in NPT Inlet Size - 1/4 in NPT Outlet - Aluminum - Black Anodized - Gas - Universal - Each -
Vendor:Holley255LPH EFI Fuel Pump Module 68-74 Corvette
- Regular price
- $499.95 USD
- Regular price
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$583.28 USD - Sale price
- $499.95 USD
- Unit price
- per
Fuel Pump - Electric - In-Tank - 255 lph - Install Kit - Gas - Chevy Corvette 1968-74 - Kit -
Vendor:Holley2BBL XP Carb Adapter - Black
- Regular price
- $194.95 USD
- Regular price
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$243.68 USD - Sale price
- $194.95 USD
- Unit price
- per
Carburetor Adapter - 0.75 in Thick - 2 Hole - Holley 2-Barrel to Square Bore - Hardware Included - Aluminum - Black Anodized - Each -
Vendor:Holley3 Bar Map Sensor
- Regular price
- $152.95 USD
- Regular price
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$178.45 USD - Sale price
- $152.95 USD
- Unit price
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Map Sensor - 3 bar - Up to 30 psi Boost - Connector Included - Each -
Vendor:Holley3.5 LCD Touch Screen Terminator-X
- Regular price
- $357.95 USD
- Regular price
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$417.62 USD - Sale price
- $357.95 USD
- Unit price
- per
Gauge Panel Assembly - Terminator X - Digital Dash - Mounting Sleeve - 3.5 in Screen - Universal - Kit -
Vendor:Holley3/8in Chrome Fuel Filter
- Regular price
- $22.28 USD
- Regular price
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$28.88 USD - Sale price
- $22.28 USD
- Unit price
- per
Fuel Filter - In-Line - 40 Micron - Paper Element - 3/8 in Hose Barb Inlet - 3/8 in Hose Barb Outlet - Steel - Chrome - Each -
Vendor:Holley30 Amp Fuel Pump Relay Kit
- Regular price
- $174.95 USD
- Regular price
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$218.68 USD - Sale price
- $174.95 USD
- Unit price
- per
Relay Switch - Single Pole - 30 amps - 12V - Wiring Included - Fuel Pump - Kit -
Vendor:Holley30" x 14" HydraMat®, Rectangle
- Regular price
- $983.95 USD
- Regular price
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$1,106.95 USD - Sale price
- $983.95 USD
- Unit price
- per
HydraMats are available in various sizes and shapes to fit a variety of stock fuel tanks and/or race fuel cells. -
Vendor:Holley30cc Accelerator Pump Cover w/Screws
- Regular price
- $27.30 USD
- Regular price
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$34.12 USD - Sale price
- $27.30 USD
- Unit price
- per
Accelerator Pump Cover - 30 cc - Screws - Aluminum - Chromate - Holley 4150 / 4160 / 4500 Carburetors - Each -
Vendor:Holley30cc Accelerator Pump Springs (10)
- Regular price
- $31.96 USD
- Regular price
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$40.07 USD - Sale price
- $31.96 USD
- Unit price
- per
Accelerator Pump Spring - Steel - Natural - Holley 30 cc Accelerator Pumps - Set of 10 -
Vendor:Holley32 GPH Holley Mighty Mite Electric Fuel Pump, 4-7 PSI
- Regular price
- $99.64 USD
- Regular price
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$99.64 USD - Sale price
- $99.64 USD
- Unit price
- per
Pumps are designed for use on all low and high pressure carburetor equipped automobiles, trucks, vans, generators, agriculture, gasoline and diesel engines, marine, construction and agriculture uti... -
Vendor:Holley340 LPH Fuel Pump Module Chevy Truck 88-98
- Regular price
- $409.95 USD
- Regular price
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$478.28 USD - Sale price
- $409.95 USD
- Unit price
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Fuel Pump - Sniper - Electric - In-Tank - 340 lph - Filter Sock Inlet - 6 AN Female O-Ring Outlet - Aluminum - Black Anodized - Gas - GM Fullsize Truck 1988-98 - Kit -
Vendor:Holley400 LPH EFI Fuel Tank Kit Chevelle/Malibu
- Regular price
- $853.95 USD
- Regular price
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$853.95 USD - Sale price
- $853.95 USD
- Unit price
- per
Fuel Tank - Sniper EFI - 20 gal - 400 lph Pump - 1/4 in NPT Outlet - 1/4 in NPT Return - Sending Unit - Steel - Silver Powder Coat - GM A-Body 1070-72 - Kit -
Vendor:Holley400 LPH Fuel Pump & Hanger Assembly
- Regular price
- $437.95 USD
- Regular price
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$437.95 USD - Sale price
- $437.95 USD
- Unit price
- per
Fuel Pump - Sniper EFI - Electric - In-Tank - 400 lph - 1/4 in NPT Inlet - 1/4 in NPT Outlet - Cadmium - Gas - Sniper EFI Fuel Tanks - Kit -
Vendor:Holley4150 600CFM SC XP Carb Draw Thru Design
- Regular price
- $1,059.95 USD
- Regular price
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$1,059.95 USD - Sale price
- $1,059.95 USD
- Unit price
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Carburetor - Supercharger XP - Model 4150 - 4-Barrel - 600 CFM - Square Bore - No Choke - Mechanical Secondary - Dual Inlet - Aluminum - Black Anodized / Tumble Polished - Each -
Vendor:Holley4150 750CFM SC XP Carb Draw Thru Design
- Regular price
- $1,013.95 USD
- Regular price
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$1,013.95 USD - Sale price
- $1,013.95 USD
- Unit price
- per
Carburetor - Supercharger XP - Model 4150 - 4-Barrel - 750 CFM - Square Bore - No Choke - Mechanical Secondary - Dual Inlet - Aluminum - Black Anodized / Tumble Polished - Each -
Vendor:Holley4150 950CFM SC XP Carb Draw Thru Design
- Regular price
- $1,213.95 USD
- Regular price
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$1,213.95 USD - Sale price
- $1,213.95 USD
- Unit price
- per
Carburetor - Supercharger XP - Model 4150 - 4-Barrel - 950 CFM - Square Bore - No Choke - Mechanical Secondary - Dual Inlet - Aluminum - Black Anodized / Tumble Polished - Each -
Vendor:Holley4150/4160 Fast Idle Cam
- Regular price
- $17.20 USD
- Regular price
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$21.78 USD - Sale price
- $17.20 USD
- Unit price
- per
Fast Idle Cam - Plastic - Red - Holley 4150 / 4160 Carburetors - Each
Showing 41 -60 of 1170 items
What Are Holley
Precision‑engineered nitrous oxide systems
Safe, controlled horsepower gains
Integrated fuel control technology
EFI and carbureted compatibility
Easy installation with clean wiring and plumbing
Reliable performance under demanding conditions
Customizable jets, accessories, and tuning options
Why Choose OzKonic Kustomz for Holley
Ozkonic Kustomz is built on precision, integrity, and real technical expertise. Every ZEX product we offer is sourced directly from authorized distributors, ensuring you get 100% genuine components, not third‑party knockoffs or outdated inventory. With a background in advanced diagnostics, compliance, and performance systems, we understand how critical reliability is when you’re adding nitrous to your build.
You’re not just buying a product—you’re buying support from a shop that knows how these systems work in the real world. From EFI tuning considerations to proper jetting and safety integration, we make sure you get the right parts for your setup and the confidence to run them hard.
Key Benefits of Our Holley
1. Precision‑Engineered Power Delivery
ZEX systems are designed to deliver controlled, consistent horsepower gains with optimized spray patterns and intelligent fuel enrichment.
2. Safe, Reliable Performance
Built‑in safety features—like active fuel control and throttle‑position activation—ensure nitrous engages only under proper engine conditions.
3. EFI & Carbureted Compatibility
Whether you’re running a modern EFI setup or a classic carbureted engine, ZEX offers kits engineered for your specific fuel system.
4. Clean, Simplified Installation
ZEX kits feature integrated electronics, pre‑assembled components, and clean wiring solutions that reduce install time and eliminate guesswork.
5. Customizable Power Levels
Interchangeable jets and upgrade accessories allow you to fine‑tune your nitrous shot for your build, goals, and engine limits.
6. Proven Durability Under Load
ZEX components are built to withstand demanding performance environments, ensuring long‑term reliability even at higher horsepower levels.
7. Complete System Solutions
From bottles and solenoids to brackets, switches, and tuning accessories, ZEX provides everything needed for a full nitrous setup.
Compatible Vehicles & Fitment
ZEX Nitrous Oxide Systems are engineered to integrate seamlessly with a wide range of vehicles, from modern EFI platforms to classic carbureted builds. Each kit is designed for straightforward installation and reliable performance across multiple engine configurations.
EFI Vehicles
ZEX EFI systems are compatible with:
- Most factory and aftermarket fuel‑injected engines
- Domestic and import performance platforms
- Naturally aspirated and forced‑induction setups
- Vehicles equipped with throttle‑position sensors (TPS‑based activation)
Carbureted Vehicles
ZEX carbureted kits fit:
- Traditional V8 muscle cars
- Street/strip builds
- Classic carbureted trucks
- Engines using square‑bore or spread‑bore carburetors
Engine Types Supported
- 4‑cylinder, 6‑cylinder, and V8 engines
- Single‑throttle‑body and multi‑port EFI
- Naturally aspirated, turbocharged, and supercharged applications
- Stock, mildly modified, and fully built engines (shot size dependent)
Universal Fitment
Many ZEX components—such as bottles, brackets, solenoids, and accessories—are designed for universal installation across:
- Cars
- Trucks
- Off‑road vehicles
- Custom performance builds
Fitment Notes
- Always match jetting to your engine’s power level and fuel system
- Verify fuel pump capacity before selecting higher horsepower shots
- Some vehicles may require additional accessories (window switch, purge kit, bottle heater, etc.) for optimal performance
Installation & Maintenance Considerations
Proper Installation for Optimal Performance
ZEX Nitrous Oxide Systems are engineered for straightforward installation, but correct setup is essential for safe and reliable power delivery. Always follow the kit‑specific instructions and verify all electrical connections, fuel lines, and activation points before first use.
Fuel System Requirements
- Ensure your fuel pump and injectors (EFI) or carburetor (carbureted setups) can support the selected horsepower shot.
- Upgrading to a higher‑flow pump or regulator may be required for larger jets.
- Always confirm adequate fuel pressure under load.
Electrical & Activation Checks
- Verify throttle‑position activation (TPS) for EFI systems.
- Confirm all relays, switches, and safety devices are wired correctly.
- Test activation circuits with the engine OFF before live testing.
Bottle Mounting & Routing
- Mount the nitrous bottle at the recommended angle for proper siphon pickup.
- Use high‑quality brackets and secure all lines away from heat sources and moving components.
- Maintain clean, kink‑free routing for both nitrous and fuel lines.
Routine Maintenance
- Inspect solenoids regularly for wear, contamination, or sticking.
- Check all fittings and lines for leaks before each use.
- Replace bottle seals and filters as needed to maintain system integrity.
- Keep the nitrous bottle filled with high‑quality, uncontaminated N₂O.
Jetting & Tuning Adjustments
- Match jet sizes to your engine’s power level and fuel system capacity.
- Retard ignition timing as recommended for higher horsepower shots.
- Monitor air‑fuel ratios during tuning to ensure safe operation.
Cold Weather & Bottle Pressure
- Maintain proper bottle pressure (typically around 900–1,000 psi) for consistent performance.
- Use a bottle heater when necessary to stabilize pressure in colder conditions.
- Avoid overheating the bottle or exceeding recommended pressure limits.
Safety First
- Always use a wide‑open‑throttle (WOT) activation method or TPS‑based activation.
- Consider adding a window switch, purge kit, and fuel pressure safety switch for enhanced protection.
- Never activate nitrous at low RPM or under heavy load without proper airflow.
























