I'm looking to get bigger ported throttle bodies for my G... I've only found 1 post from like 2013 with info on switching out throttle bodies. I have a few questions if anyone knows..

1. What's the biggest size throttle body I can fit in my 2013 G37-S without scraping my gen 3's? Some say 63.. some say 70.. and then there are 90 mm ridiculous skunk2's but only work with their intake.
2. Where should I buy said x'mm throttle bodies that aren't overpriced.. I've seen some sites range from $300 each to something crazy like $800 each.. Money isn't an issue as long as it's worth it

From my research it's worth the throttle response and hp/torque gains w/ a tune as far as mods for NA cars go.

Thanks fam

 

Several options for ya. You can essentially use any size throttle body, 150MM if you wanted, just gotta get a coupler and tune for them to fit and run lol.

Custom ported and CNC throttle bodies, upper and lower manifolds - Nissan 370Z Forum
https://www.myg37.com/forums/g37-cou...-increase.html
https://www.z1motorsports.com/air-in...hr-p-9476.html