well I just tried it yesterday and I saw the needle go just a smidge past the 120mph mark when I hit my 8300 rev limit....maybe its 8200, I forget what Sean set it at.

 

my tires are 245 40 18 an they are barely over 24"s...and my tires have plenty of tread left

so i figured if i couls get this done at the great price Top Level gave me why spend close to $800 for new tires..

now i i can 130mph in 4th...well that is what i read...

 

i trapped 119 with 255/40's on stock wheel