I am trying to update my G37 sedan (2012 non-sport). I have purchased Tein Basis street coilovers, they got delivered last night and for wheels I have decided to go with Niche M157.

I need opinion on the following:
After some research I concluded that if I go 20x9 & 20x10 staggered setup, i shouldn't have rubbing problems, what do you guys think?
My cousin is advising me to get 245-35-20" and 285-30-20" tires, what do you guys think?

for tires, i will love to get tires with rounded sidewalls, i am not sure if its practical. the IPL wheels I had were on potenzas and their sidewall was beautiful! I need recommendation on tires. While I cant afford a 350$/tire but my budget is to stay under $850/4 tires. I saw potenzas, invo, hankooks, nitto 555 within range. I live in south florida, I am only looking for summer performance.

thanks for reading my confusion, any comment will be much appreciated !

 

With the proper offsets those tires will fit fine, I have 245/35 on 8.5+40 front and 295/30 on 10+45 rear with no issues.

As far as tires, check out the ToyoT1 Sports here, Andrew gives nice deals when you mention the site
BTW, look forward to pics & reviews of those coilovers when you get them up & running
TreadDepot.com: Toyo Proxes T1 Sport Tires

 

If you haven't bought the wheels yet, I would buy the wheels and tires from Andrew. He'll save you some money. And with the Niche wheels, you're gonna want 72.6 - 66.1 hub rings. These did the trick for me:

 

I will post pics it was your advice i am following brad
and why would i need hub ring? I will try to install new wheels and coils at the same time and will see how my camber \ toe runs. I plan to leave it on stock first.
and, can i get contact of andrew ?

 

Yeah, get the whole wheel/tire pkg from Andrew. Just call Treadepot and ask for him.
The hub rings are one more step to eliminate vibration, the lugs get them close (and sometimes perfect) and the hub ring gets it all the way homw w/ no room for movement on the hub. It's recommended for any aftermarket rim that doesn't have the Infiniti 66.1mm hub bore.

 

I am getting some good prices on TOYO T1 sports on Onlinetires.com, they have better prices on display vs treaddepot on call.
I got to know that the wheels i am getting (Niche M157) only come in 20x8.5 while I wanted 20x9.
So i will be ending up with 20x8.5 and 20x10 setup. I am thinking if i can install 255-35-20 in front ?
difference is only 10 bucks per pair :/ any suggestion?

 

You can go with the 255s up front, just be sure to get the 8.5 +35 front 10" +40 rear. I'd call Andrew and let him know about the price difference, it looks like it's only less than a dollar per tire. Andrew has a great track record over here FWIW. I don't seem the Niche Form listed on either site so not sure how that price compares
Treadepot is a site vendor, always nice to support those that support the site, check this listing, they will price match so I'd give them another shot.
Brad
MyG37 - Vendor Directory