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1999-2007 Classic GM Extended Cab Sub Boxes by Subthump

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 CTB99-110/112Ultra 
 99-06 GM Extended Cab Ultra Deep Single 10/12 Downfire Box 
 99-06 GM Extended Cab Ultra Deep Single 10/12 Downfire Box 
Availability: Available

 $119.00 
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 CTB99-210Amp 
 99-06 GM Extended Cab Dual 10 Downfire With Amp Space *Best Seller* 
 99-06 GM Extended Cab Dual 10 Downfire With Amp Space *Best Seller* 
Availability: Available

 $159.00 
 Buy Now  
 CTB99-210/212Ultra 
 99-06 GM Extended Cab Ultra Deep Dual 10/12 Downfire Box *Best Seller* 
 99-06 GM Extended Cab Ultra Deep Dual 10/12 Downfire Box *Best Seller* 
Availability: Available

 $149.00 
 Buy Now  
 Ultra MAXX 
 99-06 GM Extended Cab Ultra Deep MAXX Dual 10/12 Downfire Box 
 99-06 GM Extended Cab Ultra Deep MAXX Dual 10/12 Downfire Box  
Availability: Available

 $239.00 
 Buy Now  
Displaying 1 to 4 (of 4 products) Result Pages:  1