I was wondering if I could put a VE SS exhaust on a VX V6?
No...........
Anything from VT-VY will fit as long as its from the same body type as your car like ute/wagon/sedan etc. there may be some minor modification needed to hangers as holden like to move things around between models. VE has a completely new floorpan so very different shape exhaust. There may be some exceptions to this so always double check before you buy.
you guys are all wrong, of course an SS exhaust will fit onto a V6 engine. it gives you 2 extra breathing holes