Time to start mods
 

I have a 03 g35 sedan I I have just rebuilt with the intention of going FI eventually. Forged Wiseco pistons, Comp star rods, ARP studded crank and heads. For now I just want a little extra hp and have been researching bolt on mods that I will need any way to go to a FI set up. So the goal this year is to do the exhaust and I have decided to get the motordyne art pipes and tanabe cat back. I also looking at the motordyne plenum spacer. I would like to get it tuned once I get this done and been lookin at Uprev. My question is with the uprev tuner can I make unlimited changes as I perform different mods along the way? Or do I have to visit a dyno tuner for them to program it or how does that work exactly? Sorry new to the tuner idea.

Ask here

https://g35driver.com/forums/tuner-d...6-uprev-q.html

If you don't know how to tune it yourself, tuner will do nothing for you since you'll have to take it somewhere anyway. Just get standard version and use the extra money to pay who ever is tuning it.