Well it looks like the previous owner of my wrx left me with not only a tranny to replace but a rear end as well. I found a used rear end with a 90 day warranty but am running 15-16psi and producing close to 300whp. I just wanted to know if a regular wrx rear end will hold up as long as I don't have too much fun. Also how much should this run me? Thanks
Don't drag launch your car and it should last just fine. I'm not sure of the cost just make sure you don't pay more than you could get an "aftermarket" setup for.