4 ZV6-18 B-WALL (23.4cf 32Hz)

DIY BOX PLANS 4 SUNDOWN ZV6-18
Slot port wall design for behind B-pillar in large SUVs
Also works with Sundown X-18 and NSv5-18 

VOLUME: 23.4cf net
TUNING: 32Hz
PORT AREA: 384in^2
(16.41in per cube)

DIMENSIONS
Width: 48in
Depth: 60in
Height: 35in