What basic turbo kits are you guys bolting on to BONE stock 5.0s and making 450 rwhp?
My friend bought the Hellion 62mm Base kit. $5300 for the kit to the house. Car already had intake and exhaust. We installed the kit (had we payed for that, the $5300 would probably be well over $6000) which took a week or so on and off. Got the car running right, 9 psi and it made 350 rwhp 420 rwtq. He also spent a bit of money on other misc. items we needed. In the end he probably had $5500 into the kit, plus $500+ to tune it on a car that was not bone stock and made 100 less rwhp than people are saying it is EASY to make. To push 450 to the tire through a bone stock motor your going to be well into the 15 psi range on a 60+mm turbo.
I'm basing this off people saying just go spend $5000 on a $5000 turbo and make 450 rwhp, not going to happen without a good amount of supporting mods, more boost than they offer in the base kits, and a good tune.
With that said, you asked on a Mustang site, in the 5.0 section and basically told us you would rather have the Mustang (no snow, use the truck if you needed etc..). Get the 5.0, but remember it will be louder, more creaks and rattles, and be working on it more than the WRX. But it will probably be cheaper in the long run to make fast, and feel better to you.