Mine sits pretty good, but the box itself has an issue and rattles in one place. I spoke to the guys @ Wicked C.A.S. and they offered to help me out, but I am in GA until the end of OCT and didn't want to rip my system apart. All in all, I am satisfied with the performance of the sub/box. It just sux when I try to pump it up. Bungies or ratchet straps should do the trick if your box jumps around.
Rob
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 2007 350Z NISMO #0618: Zerolift | UPREV | F.I. | Greddy | Competition Clutch | Injector Dynamics | Aeromotive | Pioneer | JL
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