Hey guys....Has any one had a problem with the stock rear end not holdin up b/c of turbo? I found this kit and was thinking about puttin on mine but these guys are in the middle of customizing a nissan 240 rear end to put on their S b/c the stock rear end dint hold up. at 8 psi it was making 312 whp and 202 wtq. I found this kind of odd just wondering if anyone has heard of or had the same problem.