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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Hard Lines
Hard lines form the backbone of a reliable fluid system in any vehicle. Unlike flexible hose, rigid metal tubing resists expansion under pressure, withstands heat and corrosion, and maintains precise routing for consistent performance. This collection covers a range of hard line applications, from brake and fuel systems to transmission, power steering, and cooling circuits.
Key considerations when choosing a hard line include material (steel, stainless steel, or nickel-copper alloy), diameter, wall thickness, and end flare type. Each of these factors affects durability and ease of installation. Whether you are replacing a corroded factory line or building a custom setup, the right hard line ensures leak-free operation and long service life.
Our selection includes pre-bent and universal lines, along with fittings and installation tools. For most vehicles, matching the original equipment specification is the safest path, but upgrading to a corrosion-resistant alloy can provide extra longevity, especially in harsh climates.
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8 products
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$181.52
Ensure precise nitrous delivery and professional-grade plumbing with the Nitrous Express 8-Cylinder Stainless Steel Tubing Kit. Designed for high-pressure performance and long-term durability, this kit provides the essential hard-line components required to plumb a direct-port nitrous system on 8-cylinder engines.
Constructed from high-quality stainless steel, these tubes are resistant to corrosion and designed to maintain structural integrity under extreme pressure. The kit includes sixteen individual tubes in varying lengths to accommodate different intake manifold configurations and nozzle placements. Each kit is supplied with the necessary B-Nuts for secure, leak-free connections to your distribution blocks and nitrous nozzles.
- Manufacturer Part Number: 80085
- Material: High-strength stainless steel
- Configuration: 8-Cylinder direct port applications
- Tubing lengths included: (4) 14-inch, (4) 16-inch, (4) 20-inch, and (4) 24-inch tubes
- Includes B-Nuts for installation
📘 Guides & Manuals
Vibrant Performance Aluminum Hardline Tubing (MPN 16413) provides a reliable and customizable plumbing solution for your vehicle's fluid transfer systems. This raw alloy tubing is designed for easy fabrication, allowing for precise cutting, bending, and flaring to fit custom engine bay layouts. While rugged enough for various plumbing needs, the material remains soft enough to polish to a high-mirror finish.
This 5/8-inch OD hardline is ideal for fuel, oil, coolant, water, and vacuum service. To ensure a secure, leak-free connection, it must be paired exclusively with Vibrant Hardline Adapter Fittings. Please note that aluminum hardlines are not intended for high-pressure hydraulic applications or corrosive fuel types.
- Part Number: 16413
- Material: Raw Alloy Aluminum
- Outside Diameter: 5/8 inch
- Length: 25-foot spool
- Compatibility: Use exclusively with Vibrant Hardline Adapter Fittings
- Suitable Applications: Fuel, oil, coolant, water, and vacuum
- Limitations: Not for use in E85/alcohol service or hydraulic lines (brakes/power steering)
📘 Guides & Manuals
Vibrant Performance Brass Olive Inserts provide a reliable mechanical sealing solution for 5/8-inch aluminum hardline tubing. These inserts are specifically engineered for use with adapter fittings featuring straight threads, allowing for a secure seal in ports that do not accommodate a standard O-ring gasket.
Manufactured from high-quality brass for durability and consistent deformation during compression, these olives ensure a leak-free transition between hardlines and adapters. They are a perfect match for Vibrant Performance metric adapter fittings in custom fluid transfer systems.
- Specifically designed for 5/8" aluminum hardline tubing
- Compatible with straight-thread adapter fittings
- Provides a secure seal for ports without O-ring provisions
- Durable brass construction for reliable compression
- Manufacturer Part Number: 16469
- Quantity: 2 per pack
📘 Guides & Manuals
Vibrant Performance Aluminum Hardline Tubing (MPN 16412) provides a versatile solution for custom automotive plumbing. This 1/2-inch OD (12.7mm) tubing is manufactured from a raw aluminum alloy specifically selected for its workability, allowing you to easily cut, bend, flare, and polish the lines to fit your specific engine bay or chassis layout.
This 25-foot spool is engineered for a wide range of fluid and vacuum applications. For reliable performance and a leak-free seal, this hardline should be paired exclusively with Vibrant Hardline Adapter Fittings. Note that this aluminum alloy is not intended for use with E85 or alcohol-based fuels and must never be used for high-pressure hydraulic systems such as brakes or power steering.
- Part Number: 16412
- Material: Raw Aluminum Alloy
- Outside Diameter: 1/2in (12.7mm)
- Length: 25 Foot Spool
- Compatible Fluids: Oil, coolant, water, gasoline, and vacuum service
- Installation: Easy to bend and flare for custom routing
- Requirements: Use exclusively with Vibrant Hardline Adapter Fittings
📘 Guides & Manuals
Vibrant Performance Aluminum Hardline Tubing provides a versatile plumbing solution for custom automotive systems. This raw alloy tubing is engineered for ease of use, allowing for precise cutting, bending, and flaring to fit your specific layout. It is an ideal choice for routing fuel, oil, coolant, water, and vacuum lines where a rigid, professional finish is required.
- Outer Diameter (OD): 3/8" (9.5mm)
- Length: 25 Foot Spool
- Finish: Raw Alloy
- Material: Aluminum
- MPN: 16411
For a secure, leak-free installation, this hardline must be paired exclusively with Vibrant Hardline Adapter Fittings. Please note that this tubing is not suitable for E85 or alcohol-based fuels. Additionally, it is not intended for use in high-pressure hydraulic systems, including brake lines or power steering applications.
📘 Guides & Manuals
Vibrant Performance 16410 Aluminum Hardline Tubing provides a professional, customizable plumbing solution for various automotive fluid and vacuum systems. Constructed from aluminum alloy with a raw finish, this 5/16-inch OD (7.95mm) tubing is designed for ease of use, allowing for clean cuts, precise bends, and consistent flaring. The material also accepts a high polish for show-quality installations.
This 25-foot spool is ideal for plumbing fuel, oil, coolant, water, and vacuum lines. To ensure a secure, leak-free seal, this hardline must be used exclusively with Vibrant Hardline Adapter Fittings. The raw alloy construction is highly durable but is specifically intended for low-pressure applications.
- Material: Aluminum Alloy
- Finish: Raw
- Outside Diameter: 5/16 in (7.95mm)
- Length: 25-foot spool
- MPN: 16410
Installation Note: Do NOT use for high-pressure hydraulic applications, including brake or power steering lines. This tubing is not suitable for use with E85 or alcohol-based fuels.
📘 Guides & Manuals
Vibrant Performance Aluminum Hardline Tubing provides a versatile and professional solution for custom plumbing projects. This raw alloy tubing is engineered for ease of use, allowing for clean cuts, precise bends, and consistent flares for a leak-free seal. It is ideal for plumbng fuel (gasoline/diesel), oil, coolant, water, and vacuum systems.
- Material: Raw Alloy Aluminum
- Outer Diameter: 1/4 inch
- Length: 25-foot spool
- Manufacturer Part Number: 16409
- Applications: Fuel, oil, coolant, water, and vacuum service
- Compatibility: To be paired exclusively with Vibrant Hardline Adapter Fittings
Installation Note: This hardline is designed for low-to-medium pressure fluid transfers. Do NOT use for high-pressure hydraulic applications, such as brake or power steering lines. This alloy is not compatible with E85 or alcohol-based fuels.
📘 Guides & Manuals
$83.25
The Nitrous Express 80045 Stainless Steel 4-Cylinder Tubing Kit provides the essential plumbing components required for custom direct-port nitrous manifold installations. Engineered for durability and high-pressure performance, this kit utilizes corrosion-resistant stainless steel to ensure reliable delivery of nitrous oxide to your intake runners.
This comprehensive kit includes eight pre-cut lines in two different lengths to accommodate various intake manifold configurations. It also comes complete with the necessary B-nuts for secure, leak-free connections at the nozzles and distribution blocks.
- Manufacturer Part Number: 80045
- Material: High-strength stainless steel
- Application: 4-Cylinder direct port nitrous systems
- Tube Lengths: (4) 14-inch tubes and (4) 16-inch tubes
- Included Hardware: B-nuts for all tubing
📘 Guides & Manuals
Can’t Find the Part You Need?
Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.
Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.
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