GAMPRO 12V Air Horn Kit — 18" Chrome-Zinc Single Trumpet, 150 dB Compressor & 80A Relay

The GAMPRO 12V 150dB Air Horn Kit is a single 18-inch chrome-zinc trumpet with a high-speed compressor and 80A relay harness that delivers a loud, attention-grabbing train-style blast for 12V vehicles.

Built for drivers who need a dependable, high-volume warning signal, this kit pairs a polished chrome-plated zinc trumpet with a powerful all-copper-coil compressor and a heavy-duty electrical harness. The package includes everything required to add a strong, consistent horn tone to cars, trucks, SUVs, RVs, boats and other 12V platforms while resisting corrosion and frequent use.

How loud is the GAMPRO horn and what does that level mean on the road?

This horn produces up to 150 dB, a level that cuts through traffic noise and alerts nearby motorists, pedestrians and wildlife. It reproduces the deep, resonant character of a classic train horn, designed for clear recognition rather than musical complexity.

• Maximum sound output: 150 dB for strong roadside presence
• Single 18" trumpet produces a deep, focused tone
• Intended for alerting in noisy environments, not for continuous use

What components come in the kit and how do they improve reliability?

The kit bundles a chrome-zinc trumpet, a high-performance compressor, and an 80A relay wiring harness branded by GAMPRO. Each part is chosen to provide swift response, steady electrical delivery, and resistance to weathering, which helps maintain performance over time.

• All-copper-coil compressor rated up to 5000 RPM for fast air delivery
• Vacuum chrome plating on the compressor for improved durability
• 80A relay wiring harness for stable power and simplified installation
• Chrome-plated zinc trumpet for rust resistance and a polished finish

How difficult is installation and what vehicles are compatible?

Installation is straightforward for anyone comfortable with basic 12V electrical wiring and mounting hardware. The included heavy-duty relay harness simplifies connections and protects the vehicle’s electrical system from the compressor’s current draw.

• Designed for 12V systems: cars, trucks, SUVs, motorcycles, RVs, boats and more
• Wiring harness includes relay and necessary terminals for safe hookup
• Mounting the trumpet requires a secure bracket and clearance for airflow

What materials and build features help the horn stand up to weather and heavy use?

The trumpet is made of chrome-plated zinc to resist corrosion, while the compressor uses an all-copper coil and vacuum chrome plating to extend service life. Those choices focus on durability and consistent output after repeated activations.

• Chrome-plated zinc trumpet resists rust and maintains appearance
• Copper coil compressor offers thermal and electrical reliability
• Protective plating processes on moving parts for longer life

Who is this for: The GAMPRO 12V 150dB Air Horn Kit is aimed at drivers who need a bold, reliable warning device — road workers, truck and boat operators, off-road enthusiasts and anyone who wants a strong, easily installed horn upgrade on a 12V vehicle. It suits installers who prefer complete kits with a robust compressor and proper relay wiring for safer, long-term performance.