I'm looking to get these turbos but I'm not really sure which option to go with. I've read the Z1 description, but it seems a little vague. Does anybody have dyno graphs or personal experience in the difference of how the 2 options behave? Is there a big power difference? What is the difference in lag? My car is a 5spd but I think it may have .54 stock turbos. What best suits the 5spd for ripping around town and say, 0-60 and 60-100 pulls? I want to have more torque than HP like some Zs do. By this description it seems like I may want the .54s, but Id like to hear opinions for both. Thank y'all in advance, sorry for the lengthy post.