use 1/2 to 3/4 pressboard, its like 8-12 for a 4x8 sheet of it. I used it for mine. I am going ported when I redo my sub enclosures.


95 SES Sold 99 SE Sport Sold 99 SVT T-Red Tan Interior. K&N, Magnecors, 19' Theorys, And some audio stuff.