Reply to "Nitto 15" Tires"

Nitto NT555R is " a DOT approved radial tire that provides impressive control and handling, and still deliver up to 15,000 miles of tread life of normal street driving use."
The Nitto NT555R is "also very popular and exceptional on road courses, track racing..."
Features:

Directional tread design
High block rigidity, soft compounding and large contact patch provide extreme dry traction in race conditions.
Two wide steel belts and two nylon cap piles stabilize tread for superior traction AND handling.
Steel sidewall inserts provide control and stability during extreme lateral acceleration.
Spiral wound, jointless bead construction ensures high casing stability for superior control at high speed
Treadwear 100 Traction and temperature A
Cornering Stability: 9.8
Dry Traction 10+

These are not unstable tires by any means as the above data and discription shows. They have a max. pressure of 44psi. I set mine at 38 rear and 34 front on the Nitto Extremes. What can I say, it took corners as fast as I dare go...and I could tell I wasn't even close to slipping.