Not that i need to know but......
 

Anyone have any idea on the blow out speed for the stock tires that come on the 02 GTs? Not that I would ever be going that fast of course ;). Yea i know the stock chip would cut in before hitting that speed but that shouldnt be in there too much longer.

I've gone 140 in mine. They seem to hold up fine.

They should be Z speed rated for 149+ mph.

Yup they are Z rated and obviously ratings don't go higher than 'Z'. I'mm pretty sure Z speed rated tires are rated at 175+. There is a website that has all of the speed rating listed but I don't remember the URL.

Speed Rating = Miles/Hour, Kilometers/Hour, Typical Use

N=87 MPH, 140km/h, Spare Tires
U=124 MPH, 200km/h
P=93 MPH, 150km/h
H=130 MPH, 210km/h, Sport Sedans
Q=99 MPH, 160km/h, Winter, LT Tires
V=149 MPH, 240km/h, Sports Cars
R=106 MPH, 170km/h, LT Tires
Z=149 MPH, 240km/h and over, Sports Cars
S=112 MPH, 180km/h
W=168 MPH, 270km/h, Exotic Sport Cars
T=118 MPH, 190km/h
Y=186 MPH, 300km/h, Exotic Sport Cars

Well that pretty much explains it.

Was going to add that list here. I know they made them higher than normal Z, cause I have ZR-W rated tires on my car.... They are the Nitto 555 Extreme ZR-W's.. Incredible tires btw, I havent ben able to spin them once, and the faster I go, they better they grip.... :-D