under psi,
I had the same problem after adding a few hp items on my srt6.
I also did to like the way my proxas tires would let go then grab in jerks.. very unload like.
I , after lots of study installed michelin pilot sport as 3 and will never look back. they hold everything i give er making it almost boring at a light. they will drift very nicely with a smooth recovery.. It is my kind of driving.
john