I have just installed headers, test pipes, and new y-pipe along with keeping the factory axle back. I was wondering if it was necessary to have the car re-tuned or if the ECU will self adjust the fuel ratio so that i am not running rich or lean. I may just wait until more mods come in then go with the Osiris tune but there is not a shop anywhere around this area that offers tuning for the Infiniti. Any advice is welcome, I am not going FI anytime soon. I just want the G running at it normal/everyday potential.

 

What are you tuned with already?

 

nothing... It was fully stock untill i bought it in December.

 

Oh....you said "re-tune", so I assumed you were already tuned before lol.

Well if you do plan on adding more mods soon, like an axle-back exhaust or something, just wait until you get all your mods done before tuning. The ECU will adjust itself over time, you just won't get all the potential out of your mods that a tune would give you.

Be sure to get a motordyne 5/16 plenum spacer, and an intake, if you haven't already.

If you really can't find any Osiris tuners near you, UpRev does offer an e-tune that'll come with a map according to your mods. Not as good as a custom dyno tune, but better than no tune, right?

 

yep true on the etune. I do have the 1/2 md spacer, and an intake.

 

I'd get a y-back (motordyne) before you tune

 

If you plan on doing more NA mods in the near future, I would wait it out.

Once you have all the NA mods you planned for, if possible, I would take it to a certified UpRev tuner for the best results. Otherwise, an e-tune should still get the job done.