Originally Posted by Glokwork

Yes uprev is worth every penny, best mod I've done so far. I saw someone say to do it in 4th gear, in the 370Z you want to use 5th gear as it's the 1:1 gear that will provide the most acccurate results. There are some shops that do not want you to go that fast on their dyno so that's understandable. I hit the speed limiter in 5th (153mph) and had to raise it to finish the uprev. Everyone with at least a couple of bolt ons should go get uprev if you really want to unlock the potential of this engine!