King Boxes

Designed specifically for '07-'18 Silverado/Sierra Crew Cab Downfire sealed configuration to maximize bass and minimize interference Generous 9.5"...

Designed specifically for '07-'18 Silverado/Sierra Crew Cab Downfire sealed configuration to maximize bass and minimize interference Generous 9.5"...

Engineered for a custom-fit in '07-'18 Silverado/Sierra Ext Cab Downfire sealed design for superior bass precision Ideal mounting depth and chambe...

Unleash deep bass - with the King Boxes AK-8DV Dual 8" Ported Subwoofer Box. Precision-engineered design - for optimal sound performance and clari...