Greg & Tammy H. just leveled up their 2024 GMC Sierra 2500HD AT4 with our Stealth Spare Tire Delete Kit. This powerhouse setup replaces the factory spare tire with a hidden train horn system, giving their truck a clean, aggressive look while keeping everything tucked out of sight.
The Stealth kit mounts Shocker XL train horns and a 5-gallon 8-port air tank in the spare tire location, pairing them with a stealth black compressor and 150 PSI air system. The install went smoothly and now their Sierra is ready for the road – stealthy, functional, and turning heads everywhere it goes.
With 10–12 seconds of honk time and an average 2-minute refill from 0 to 150 PSI, the Stealth Spare Tire Delete Kit delivers serious performance on a heavy-duty platform like the 2500HD AT4. Greg & Tammy also added a HornBlasters Tire Inflation Kit, giving their Sierra practical onboard air for airing up tires in addition to the horn system.
Big thanks to Greg & Tammy for trusting HornBlasters to take their rig to the next level. Their 2024 GMC Sierra 2500HD AT4 now combines hidden train horn power with real-world utility, all built into the space that used to hold the spare.
Feature Highlights
- Stealth Spare Tire Delete Kit replaces the factory spare tire with a complete hidden Shocker XL train horn system
- Includes four-bell Shocker XL train horns, 5-gallon 8-port air tank, stealth black compressor, valve, gauge, and wiring
- Operates at 150 PSI with 110 PSI restart pressure, providing 10–12 seconds of honk time with an average 2-minute refill
- Spare tire location install keeps the system out of sight while freeing up bed and frame space
- Paired with the HornBlasters Tire Inflation Kit to add practical onboard air for tire inflation and roadside use