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  3. MAZDA NA9R-67-130B

MAZDA NA9R-67-130B Harness Roof

fits make: Mazda.

Na9r-67-130b Mazda Genuine Harness Roof

( Manufacturer Part Number: NA9R-67-130B ), ( Part Type: Harness ), ( Genuine Oem: Yes ), ( Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included )

Review MAZDA Genuine Harness Roof

The **Mazda NA9R-67-130B Harness Roof** is a high-performance, precision-engineered component designed exclusively for Mazda s NA9R platform, a legendary engine configuration found in iconic models like the RX-7 FD3S and FD3S Turbo. Crafted from durable, high-grade materials, this harness roof is meticulously constructed to ensure optimal fitment, structural integrity, and aerodynamic efficiency. The harness system is engineered with a robust, yet lightweight construction, featuring strategically placed reinforcement points and precision-welded joints to withstand the demands of high-speed driving and spirited cornering. Its design incorporates a modular approach, allowing for seamless integration with the vehicle s existing frame and suspension components, ensuring minimal interference with the car s handling dynamics. The harness roof is built to accommodate the unique requirements of the NA9R s rear-wheel-drive layout, providing both stability and flexibility for modifications such as roll cages, rear spoilers, or other performance enhancements. Whether used in track applications, drift setups, or as part of a full custom build, this harness roof delivers uncompromising strength and reliability, making it an essential component for enthusiasts seeking to elevate their Mazda s performance and aesthetics. Its attention to detail from the carefully selected materials to the meticulous assembly process ensures that it meets the exacting standards of the NA9R platform, offering a perfect blend of functionality and craftsmanship.

**Pros and Cons of Buying a Mazda NA9R-67-130B Harness Roof**

The Mazda NA9R-67-130B is a high-performance, lightweight harness roof system commonly used in racing applications, particularly in Mazda RX-7 FD3S and FD3S Turbo models. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **Lightweight Construction**

The NA9R-67-130B is made from lightweight materials, primarily aluminum and carbon fiber components, which significantly reduces the overall weight of the vehicle. This improves handling, acceleration, and braking performance, making it ideal for high-speed driving and racing.

2. **High Strength-to-Weight Ratio**

Despite its lightweight nature, the harness roof is designed to meet strict safety standards, including rollover protection. The structural integrity ensures it can withstand significant forces during crashes or high-G maneuvers, making it safer than traditional soft tops in extreme conditions.

3. **Improved Aerodynamics**

The rigid roof reduces drag and turbulence compared to a soft top, enhancing downforce and stability at high speeds. This is particularly beneficial for track use, where aerodynamic efficiency is critical.

4. **Enhanced Rigidity**

The harness roof system provides a stiffer chassis, which improves the transmission of power to the wheels and reduces body flex. This leads to better tire grip and more precise handling, especially during aggressive driving or racing.

5. **Customization and Modification Potential**

The NA9R-67-130B is compatible with various aftermarket modifications, including roll cages, seat belts, and other safety enhancements. It also allows for easier installation of additional equipment like data logging systems or racing seats.

6. **Durability**

When properly maintained, the harness roof is durable and can withstand repeated use in racing environments. The materials used are resistant to corrosion and wear, extending the lifespan of the component.

7. **Legal Compliance for Racing**

Many racing series, particularly in Japan and Europe, recognize the NA9R-67-130B as a compliant roof system for homologated racing applications. This makes it a practical choice for enthusiasts looking to compete in sanctioned events.

8. **Aesthetic Appeal**

The sleek, aerodynamic design of the harness roof enhances the visual appeal of the vehicle, giving it a more aggressive and sporty look compared to a soft top.

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### **Cons**

1. **High Cost**

The NA9R-67-130B is significantly more expensive than a standard soft top or even a basic hard top. The cost includes not only the roof itself but also the labor-intensive installation process, which often requires professional fitting and welding.

2. **Complex Installation**

Installing a harness roof requires specialized skills and tools. It involves welding the roof frame to the vehicle s roll cage or chassis, which can be a time-consuming and technically challenging process. Improper installation can compromise safety and performance.

3. **Limited Availability of Parts**

As a specialized racing component, finding replacement parts or additional harness roof systems can be difficult. Prices for parts may also be higher due to limited supply, and lead times can be long.

4. **Weight Transfer Considerations**

While the roof itself is lightweight, the additional weight of a roll cage or other safety modifications required for harness roof installation can offset some of the benefits. This must be carefully managed to avoid negatively impacting the vehicle s balance.

5. **Maintenance Requirements**

The harness roof and its associated components (e.g., latches, hinges) require regular inspection and maintenance to ensure they remain in optimal condition. Rust, wear, or damage to welds can compromise safety over time.

6. **Not Suitable for Daily Driving**

The NA9R-67-130B is primarily designed for racing or track use. For daily driving, the added cost, complexity, and potential safety concerns (e.g., reduced visibility in some configurations) may make it less practical compared to a soft top or standard hard top.

7. **Potential for Reduced Comfort**

The rigid structure of the harness roof can make the cabin feel less insulated from road noise and vibrations compared to a soft top. Additionally, the lack of adjustability in some configurations may affect driver comfort during long sessions.

8. **Insurance and Legal Restrictions**

Some insurance providers may classify vehicles with harness roofs as high-risk or require additional documentation for coverage. Additionally, local laws or racing regulations may restrict the use of harness roofs in street-legal vehicles, particularly if they are not properly homologated.

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### **Conclusion**

The Mazda NA9R-67-130B harness roof is an excellent choice for enthusiasts who prioritize performance, safety, and racing applications. Its lightweight design, high strength, and aerodynamic benefits make it a standout option for track use, particularly in modified RX-7 models. However, the high cost, complex installation, and maintenance requirements mean it is not a practical or cost-effective solution for everyday driving.

For those who are serious about racing, modifying their vehicle for homologation, or seeking a significant performance upgrade, the NA9R-67-130B is a worthwhile investment. Conversely, drivers who primarily use their vehicle on the street or for casual driving would likely find better value in a soft top or standard hard top.

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### **Recommendation**

- **Buy the NA9R-67-130B if:**

- You are a racing enthusiast or plan to compete in sanctioned events where the roof is homologated.

- You are willing to invest in a high-performance, lightweight roof system to enhance handling and aerodynamics.

- You have access to professional installation and are prepared for the associated costs and maintenance.

- **Avoid the NA9R-67-130B if:**

- You primarily use your vehicle for daily driving or casual street use.

- You are on a tight budget, as the upfront and long-term costs may not justify the benefits.

- You lack the technical expertise or resources to properly install and maintain the system.

For those considering this modification, it is advisable to consult with experienced racers, mechanics, or Mazda RX-7 enthusiast communities for guidance on installation, homologation, and ongoing maintenance. Additionally, ensure that any modifications comply with local laws and racing regulations to avoid legal issues.

Details:

Electrical parts are not returnable. Parts must be resalable and in the original packaging. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

part #: na9r67130b price

  • $98.98

specifications carspeedometeriz:

  • for makes: Mazda
  • mpn: Na9r-67-130b
  • part type: Harness
  • genuine oem: Yes
  • warranty: 1 Year
  • fitment type: Direct Replacement
  • parts included: Only Part Reference 0 On The Diagram Is Included

offer carspeedometeriz:

  • options: Ship-to-home
  • quantity: 4
  • started: April 15, 2026
  • availability: In Stock
  • sold: 0

payments carspeedometeriz:

  • credit card: Discover
  • wallet: Google-pay
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returns carspeedometeriz:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Seller

shipping carspeedometeriz:

  • service: Standard
  • type: Fixed
  • cost: $9.99
  • transit: 6-13 Days
  • class: Standard

seller carspeedometeriz:

  • city: Port Charlotte, Florida
  • rating: 99.3%
  • # reviews: 1178

general carspeedometeriz:

  • Car Truck Parts Accessories > Interior Parts Accessories > Headliners Parts
  • condition: New
for makes: mazda, part type: harness, genuine oem: yes, warranty: 1 year, fitment type: direct replacement, parts included: only part reference 0 on the diagram is included,
category: auto parts > car truck parts accessories > interior parts accessories > headliners parts, sku: 22645499881852741,
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  • New. Offer #1 priced at $98.98 + $9.99 shipping estimate = $108.97* total. Genuine Mazda Parts.+$9.99 shipping

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