Austin Johnson upgraded his 2016 GMC Sierra 1500 with a HornBlasters train horn system to dramatically increase sound output and road presence while maintaining a clean, functional installation. This build demonstrates how well the Sierra 1500 platform supports a full train horn setup when installed correctly.
What Train Horn System Was Installed on This 2016 GMC Sierra 1500?
This 2016 GMC Sierra 1500 was outfitted with a HornBlasters train horn kit engineered for high-volume output and reliable everyday use. The system delivers authentic train horn sound that significantly exceeds the factory horn in both loudness and clarity.
Installed components include:
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Train horn assembly
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High-performance air compressor
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Air tank for consistent pressure
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Secure vehicle-mounted installation hardware
This configuration allows for immediate activation and dependable performance without long refill delays.
Why the GMC Sierra 1500 Is Ideal for a Train Horn Upgrade
The GMC Sierra 1500 offers ample space under the truck and along the frame rails, making it an excellent candidate for a train horn installation. With proper mounting, the system integrates cleanly without interfering with daily drivability.
Key advantages of this upgrade:
- Significantly louder output than the stock horn
- Improved driver awareness and safety
- Durable components built for truck use
- Clean, professional installation

