1. Automotive Used Intake Manifolds Items
  2. sku: 5916061857966504
  3. GM 25379709

GM 25379709 Tbss Nbss Cathedral Intake Fuel Rails Injectors Tbss/nbss 36LB Ls Lsx 5.3 4.8 6.0

25379709 Gm Tbss/nbss Cathedral Intake Fuel Rails 36lb Injectors Ls Lsx 5.3 4.8 6.0

( Brand: Gm ), ( Mounting Style: Bolt-on ), ( Color: Black ), ( Manufacturer Part Number: 25379709 ), ( Cylinder Head Type: Cathedral Port ), ( Material: Plastic ), ( Vintage Part: No ), ( Placement On Vehicle: Front ), ( Fuel Type: Ethanol ), ( Type: Ls Swap ), ( Manufacturer Warranty: No Warranty ), ( Engine Size: 4.8l 5.3l 6.0l ), ( Features: Heat-resistant, Unfinished )

Review GM Tbss/nbss Cathedral Intake Fuel Rails 36lb Injectors Ls Lsx 5.3 4.8 6.0

The GM 25379709 TBSS/NBSS Cathedral Intake Fuel Rail Kit is a high-performance upgrade for LS and LSX engines, specifically designed for use with 36lb injectors on 5.3, 4.8, and 6.0 liter applications. This intake system is an essential component of the fuel delivery system, improving both power and efficiency.

This fuel rail kit features a cathedral-style design, which provides increased fuel pressure and improved atomization for optimal combustion. The rail's design allows for the use of multiple high-pressure fuel injectors, ensuring precise fuel delivery to each cylinder. The rail is constructed from robust materials, ensuring durability and reliability even under demanding conditions.

The TBSS/NBSS Cathedral Intake Fuel Rail Kit comes with all necessary hardware, including fuel rail mounting brackets, fuel pressure regulators, and fuel lines. These components are designed to fit seamlessly into your engine bay and provide a secure, leak-free connection.

The fuel rail kit is compatible with a wide range of LS and LSX engines, including those found in Chevrolet, GMC, and Cadillac vehicles. It is an excellent choice for enthusiasts looking to upgrade their fuel system for increased horsepower, torque, and fuel efficiency.

Installation of the fuel rail kit is a straightforward process, with clear instructions provided to guide you through the process. The kit's components are designed to fit and work seamlessly with your existing engine wiring and fuel system, minimizing the need for additional modifications.

In summary, the GM 25379709 TBSS/NBSS Cathedral Intake Fuel Rail Kit is a high-quality, performance-enhancing upgrade for LS and LSX engines. Its cathedral-style design, robust construction, and compatibility with multiple injector sizes make it a popular choice among enthusiasts looking to maximize power, torque, and fuel efficiency.

Pros and Cons of Buying GM 25379709 TBSS/NBSS Cathedral Intake Fuel Rails with 36lb Injectors for LS LSX 5.3, 4.8, 6.0 Engines

Introduction:

The GM 25379709 TBSS/NBSS Cathedral Intake Fuel Rails with 36lb injectors are aftermarket performance parts designed for LS LSX 5.3, 4.8, and 6.0 engines. These fuel rails and injectors offer improved performance and are popular among enthusiasts and racers. In this article, we will discuss the pros and cons of purchasing these fuel rails and injectors for your vehicle.

Pros:

1. Increased Power and Performance: The primary reason for installing high-performance fuel rails and injectors is to increase the power output of the engine. These fuel rails and injectors offer a significant improvement in fuel delivery, which translates to more power and torque.

2. Improved Fuel Efficiency: Although the primary goal is to increase power, these fuel rails and injectors can also improve fuel efficiency by ensuring optimal fuel delivery to the engine. Proper fuel delivery leads to better combustion, which can result in better fuel economy.

3. Better Engine Responsiveness: High-performance fuel rails and injectors offer quicker response times, resulting in smoother engine operation and better throttle response.

4. Increased Durability: The high-pressure fuel delivery system of these fuel rails and injectors is more robust than the factory system, resulting in increased durability.

5. Flexibility: These fuel rails and injectors are compatible with a wide range of LS engines, making them a versatile option for those who want to upgrade their vehicle's fuel system.

Cons:

1. Cost: High-performance fuel rails and injectors can be quite expensive compared to the factory system. The cost of these parts can add up quickly, especially when considering the cost of other performance upgrades.

2. Complex Installation: Installing aftermarket fuel rails and injectors can be a complex process that requires specialized tools and knowledge. It may be necessary to hire a professional to ensure proper installation and calibration.

3. Potential for Leaks: High-pressure fuel systems can be prone to leaks, which can be dangerous and costly to repair. Proper installation and regular maintenance are essential to prevent leaks.

4. Increased Engine Noise: The high-performance fuel system can result in increased engine noise due to the higher fuel pressure and the sound of the injectors firing.

5. Potential for Engine Damage: Improper installation or calibration of these fuel rails and injectors can lead to engine damage. It is essential to ensure proper installation and calibration by a qualified professional.

Conclusion:

The GM 25379709 TBSS/NBSS Cathedral Intake Fuel Rails with 36lb injectors offer significant performance benefits for LS LSX 5.3, 4.8, and 6.0 engines. However, these benefits come with some drawbacks, including cost, complexity, and potential risks such as leaks and engine damage.

Recommendation:

If you're considering upgrading your vehicle's fuel system with these high-performance fuel rails and injectors, it's essential to weigh the pros and cons carefully. Ensure that you have the necessary knowledge, tools, and resources to install and calibrate these parts properly to avoid potential issues. Consider seeking the help of a professional to ensure a successful installation. Ultimately, if you're looking for increased power, improved fuel efficiency, and better engine responsiveness, these fuel rails and injectors may be worth the investment.

Details:

Intake - PN #25379709 Injectors 36lb #12580681 Rails #12580418 Hardware broken auxiliary vacuum port.

part #: 25379709 prices

  • $79.99-$199.99

specifications inputmanifolds:

  • brand: Gm
  • mounting style: Bolt-on
  • color: Black
  • manufacturer part number: 25379709
  • cylinder head type: Cathedral Port
  • material: Plastic
  • vintage part: No
  • placement on vehicle: Front
  • fuel type: Ethanol
  • type: Ls Swap
  • manufacturer warranty: No Warranty
  • engine size: 4.8l 5.3l 6.0l
  • features: Heat-resistant, Unfinished

general inputmanifolds:

  • condition: Used
  • Car Truck Parts Accessories > Air Fuel Delivery > Intake Manifolds

payments inputmanifolds:

  • other
  • credit card: Visa
  • wallet: Paypal

offer inputmanifolds:

  • availability: In Stock
  • started: March 17, 2025
  • sold: 0
  • options: Ship-to-home
  • quantity: 1
  • best offers: True

shipping inputmanifolds:

  • class: Standard
  • cost: $83.67
  • transit: 4-10 Days
  • type: Calculated
  • service: USPS Ground Advantage
  • carrier: USPS

returns inputmanifolds:

  • policy: No Returns

seller inputmanifolds:

  • city: Wichita, Kansas
  • rating: 100.0%
  • # reviews: 71
mounting style: bolt-on, cylinder head type: cathedral port, vintage part: no, placement on vehicle: front, fuel type: ethanol, type: ls swap, manufacturer warranty: no warranty, engine size: 4.8l 5.3l 6.0l, features: heat-resistant, unfinished,
category: auto parts > car truck parts accessories > air fuel delivery > intake manifolds, color: black, material: plastic, sku: 5916061857966504,

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2 offers $79.99–$199.99 USD
  • Used. Offer #1 priced at $199.99 + $14.99 delivery = $214.98* total. Most modern modules (ECM, ECU, BCM, TCM, etc.)require programming after installation. Programming isnot included.+$14.99 shipping
  • Used. Offer #2 priced at $79.99 + $58.80 delivery = $138.79* total. Part # This is a used OEM intake manifold with throttle body for a GM with a 4.8L/5.3L engine.+$58.80 shipping

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