i got flamed for this once but doing bout 160 in a z was fun no biggie my ls400 did 155 darn governor would not let me do more 3rd gen prelude 140 it was past the speedo range WAS a bit scary that is one i dont recomend. OH THIS IS TO THE YOUNG PUNKS OUT THERE DONT TRY TO GO FAST WITHOUT A LOT OF EXPERIENCE YOU WILL KIL YOURSELF AND POSSIBLY TAKE ANOTHER LIFE *SPEED IS DEATH not a thrill*