What is the best G37 flash tuner?

2009? G37S PRHT 6MT.  My son in-laws new ride. 

I'm picking up some factory issue forged Rays with snow tires for him tomorrow in the correct staggered fitment.

https://grandrapids.craigslist.org/wto/d/infiniti-wheels-with-snow/6754155351.html

Now he is thinking about a tuner, have any of you used one on a G car or Z car.  Uprev seems to be the goto Nissan tuner and the usual hypertech covers all makes.  Glen is an it guy so he could probably figure out the whole datalog, e-mail and reflash routine if needed.

Oh yeah, one more thing he needs some mufflers for it, the delete that it came with is getting old.  

I don’t know about the tuners but a friend put a set of Borla’s on his Maxima and it sounded fantastic.  I think it had the bigger motor in it. A 3.5 maybe????  I don’t know a lot about these cars but his sure sounded great!!!  

Honestly, Not really worth the cost for a tuner. Only way to get any real additional HP is to go deep into the motor with either cams or turbos. 

But if I had to buy a tuner, Up-Rev is the only decent one left. Everything else isn't even worth getting. But even with the Up-Rev, It's only going to be 10-15 HP max for $600-700 spend. 

bmw88rider said:

Honestly, Not really worth the cost for a tuner. Only way to get any real additional HP is to go deep into the motor with either cams or turbos. 

 

But if I had to buy a tuner, Up-Rev is the only decent one left. Everything else isn't even worth getting. But even with the Up-Rev, It's only going to be 10-15 HP max for $600-700 spend. 

I'm a G37 owner too and looked into tuners.  That was the general consensus I found too, not much to be gained with the VQ on a flash tune. 

I do wish I had the funds to put a good exhaust on it.  I love the low rpm growl, and with a good exhaust, it sounds fabulous. 

Full exhaust, Admin Tuning intakes and an Admin Tuning remote tune will net you way more power than you'd expect. He uses UpRev and he seems to be the god of VQ tuning.