Not familiar with the Z's need some help spending money!

gsxr750

The big question is that depending on the mods the dealer or nissan could void the warranty should problems arise either directly or indirectly to the mods you have done.

Also performance gains from the aftermarket CAI and exhaust are really minimal in gains and never really felt unless you were to race the car at the drag strip or road race it.

Your car already has factory CAI stock that work really good.

Fang

Thank you for an answer. I cannot stand it when people say to search and write out a lengthy answer to not answer anything. I did search but did not find what I was looking for. I am trying to help out my father in law with "his" car. I am not familar with them.

FL 4Motion

tuning: Uprev has been around for awhile with good reliable an safe results. Ecutek is new and just coming online now.

intake: stock is a cai of sorts. Post maf tubes and k&n drop in filters a re agreat economical choice. Or, spend more $$$ for a little more power and get the stillen G3's or the newish AAM comp s line/r line cai (that's where I'm leaning towards at this time.

exhaust: Fast Intentions is a great choice. also some other if you search you'll find info. I've run the FI exhaust on my last nismo and it's a great piece with excellent welds etc.