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Kleinn bolt-on GM1500 onboard air system for 2007–2013 Chevrolet Silverado and Sierra includes a Model 730 triple train horn, a 150 PSI air system and a custom Made-in-USA bracket for bolt-on installation without drilling. The complete kit provides inflator, gauge and hardware; it supports an upgrade path with P/N 6890 Ultra Blastmaster valve to increase horn output.
Kleinn 07-13 Chevrolet Silverado/ Sierra Onboard Air System w/ Model 730 Horns
