BLACK 12" DUAL PORTED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXTENDED CAB 99-06 & 07 CLASSIC
Amazon.com: Compatible with 2001 2002 2003 2004 2005 2006 Chevy Silverado HD Crew Truck Alpine S-W12D2 Type S Car Audio Subwoofers Custom Dual 12" Sub Box Enclosure Package : Electronics
Discontinued Obsolete SKU | MTX Audio - Serious About Sound®
2005 Chevy Silverado Crew Cab Subwoofer upgrade? | DIYMobileAudio.com Car Stereo Forum
DUAL SUB BOX for 2003-2006/07 Classic Chevy Silverado 1500 CREW - Sound Off Audio, Inc.
1999-2006 Chevy Silverado GMC Sierra Custom center console subwoofer Box 12 inch | eBay
2001-2007 Chevy Silverado 2500Hd Crew Cab Dual 12" Stereo Subwoofer Sub Box New - Walmart.com
Custom Level 5 Front Firing Subwoofer Enclosure for the 2019-2024 GMC – Sounds Good Stereo Online
Dual Sub Box (behind rear seat) 2001-2006 SILVERADO CREW HD - SSA STORE
Amazon.com: 2001-2006 Chevy Silverado/GMC Sierra HD Crew Cab Dual 10 Downfire Subwoofer Box : Electronics
Ported sub box 2007-2013 Chevy Silverado Extended Cab truck
Amazon.com: American Sound Connection Compatible with Chevy Silverado or GMC Sierra Full Size Extended Cab Truck 1999-2006 Dual 10" Subwoofer Sub Box Speaker Enclosure : Electronics
Sub box 2003-2006 Chevy Silverado half-ton crew cab truck