Best tunning for Nismo 370Z
 

Had my Nismo for awhile, I have never tune it yet. What do you guys use for tunning your Nismo? Does it make lots difference? Thanks!

R/T tuning does great work with Zs and always post good #s. Depending on what you have done it should give 10~15wtq and 10~15whp. They're located in PA, or if it's closer to you, you can go to Real Auto Dynamics in Long Island they also work on Zs and they are also a forum sponsor like R/T tuning.

Are you talking about going with Osiris or open source tuning? Ive always wanted to tune my nismo, but am continually confused as to how it works and how much it costs. Its not like Subaru where you plug a COBB into your car and load a program onto it i assume. If i remember the tune ends up costing something crazy like $1,000 after everything so i never did it. I think there are two different types of Osirs tunes, not sure what the difference is, or what you get when you buy, something physical? etc.

Osiris is part of the UpRev package. Right now, it's the only thing worth while. Call RT Tuning for pricing.

Since your in NY I'd recommend you go to Real Auto Dynamics just based on distance R/T Tuning is just as capable. They did my uprev tune and are very familiar with 370Zs. Yor only choices for tuning is Uprev (osiris) or ECUTek. I can't tell you which is better for you, for me I liked uprev.

I've been on the fence about this, too.

I've been driving around for a while with F.I. CF CBE and Berk HFCs... love the sound and the butt dyno says it's faster.

Probably the only other things I'd consider doing are post-MAF tubes + filters and a tune.

With just the basic breathing mods done... will I notice a difference from a tune? Is it worth the price?

Do all of your bolt-on mods done first. Then go for a tune. The tune will clean up the A/F through the rev range, improve throttle response, turn the radiator fans on earlier, and pick up mpg IF you can keep your foot out of it. ;)