I'm having sliping problems. I have T1-Rs on the front wheels and its a charm. I never ever understeer. In the back I have TOYOs FZ4 because they are cheaper since they wear out really fast (RWD). But since my upgrade (271whp) I am having sliping problems. They slip all the way in first and second...

I was considering putting T1Rs in the back but they are not cheap...Is there something as good but cheaper? I would think not...

Spec.