I have a motordyne TDX2 exhaust which I just installed a couple weeks ago, plenum spacer, and z-tube/filter. I am planning on getting ART pipes, transgo shift kit, headers, and possibly the straight pipe XYZ for the TDX exhasut all withing the next 5 or 6 months. was just trying to get opinions on when the best time to finally get osiris tune done would be since your only allowed 3 tunes..

 

i'd just do it after you're done with all the bolt ons. but be careful since you will probably be running lean . i haven't installed the art pipes yet and i'm already running super lean with just a stillen intake, plenum spacer and a fujitsubo exhaust..

 

https://g35driver.com/forums/tuner-d...-07-coupe.html

i waited till i had every bolt on..and it was worth it.