Too Small to fit without modification. You want 6.5" components ideally. Plus it seems that the mounting depth is not listed so you'd probably need to use spacers also to get them to fit.
Not been any for a while now. Needs a new rep to step up and take things on. I'm not as free to organise things anymore and the other rep who was, is not in the area now.
Have you checked the gain on the amp?
Is the sub sealed properly in it's enclosure?
Is the enclosure the right size for the sub?
Have you got the sub wired out of phase i.e. positive and negative terminals round the wrong way?
170bhp diesel which is fairy economical, 2 / 4 wheel drive when selected. Plus a ton of space if you have to carry kit. Why not go test drive one and see what you think.