Chris S. just took his 2017 GMC Sierra 1500 to the next level with the Shocker S6 544K Nightmare Edition Train Horn Kit! But he didn’t stop there—he also added a 220 PSI Digital Air Pressure Gauge and an Electric Drain Valve Kit for maximum performance and convenience.
Now, Chris has the loudest train horn kit we make, plus top-tier monitoring and maintenance tools to keep it running flawlessly. Whether he’s rolling through town or hitting the highway, his Sierra is bringing the NOISE!
Why Chris’s setup is straight-up legendary:
Shocker S6 Power – Six bells for that REAL train horn blast!
220 PSI Digital Gauge – Easy, accurate pressure readings at a glance.
Electric Drain Valve Kit – Hassle-free maintenance with the push of a button.
Loudest Horn Kit We Make – No competition, just pure power!
Chris, your Sierra 1500 is officially a BEAST! Who else is ready to join the Nightmare Edition club?