View Full Version : Box ideas/pics 2004 GMC 1500 Ext.cab

11-18-2009, 07:06 PM
A friend has two 8''s and wants to put a sealed underseat prefab in his 2004 GMC 1500 Ext. cab. I told him we should look for a ported design for higher output. His last sub setup RE SE 12''s ported in an Envoy. I want him to be happy with the install, so any pics/designs for two 8''s would be appreciated.

Still want to do underseat box, just some ideas on ported designs.

11-18-2009, 07:11 PM
Rectangular box, subs firing forward, aeroport firing towards passenger side of truck