i assume you mean for an sn95 gt so based on that, i'd say not a good idea if you want that thing to handle at all. personally i wouldn't go anything thinner than a 8"
If you dont fly around corners much I dont see why it would be a big deal. They would be really narrow like the V6 wheels though. Maybe have the rear wheels widened for a couple hundred bucks if you really like the looks of them?