I loooked for those came up empty. I looked on Sundown's webpage and saw that they have sealed specs for the 8's. I called a local shop that is a authorized dealer and they said you can run them sealed. I rather go seal only because I drink too much to even think about trying to build a ported box. Its a toss up between the 10 Dayton HO or a SA-8. I like low deep bass.Hits hard at high volumes and still gets the lows. Ive seen some sick Youtube posts with some flexin off 1 SA in a ported box, but like I said I need to be mindful of the limited space under the back seat. The new body style has less room than last body style,,,so I just dont know....Crack open another beer...