cos "Race" exhaust

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R32 GTR - 800ish

60.7 Long Track at Barbs
57.6 at RAC Reverse circuit.

Taylor,
It's not at all about stance, last of my worries.... not running stretched tyres like them idiots and not lowering it stupidly.

It's all about deep concave wheels!

Here's how:
9.5 rim with the right offset (+33~+20) and tyre size/profile (255/35) gives you that ultra concave look without affecting performance(assuming), driveability, and even the speedometer which is almost on par with that config (.0022% difference in speedo reading [winning!]).

And best of all is that the tyre comes to the exact same height to the strut as your stock wheels while being a few millimetres further away from the strut, so your stock suspension takes it no problems.
As a comparison for you guys running 18x8.5 with 245 40 tyres - your tire is well above what your normal OEM tire would be, hence why you need coilovers for sure as it otherwise will rub with the spring seat

The guards will have to be rolled and camber bolts will have to be used, nothing more in the immediate, but will eventually need coilovers as bounce/suspension travel will be an issue with passengers in the car. You don't want anything with more offset than +30 as it will be a guard fitting mission with a 9.5, a +30 is the perfect fit.

Thats what I've gathered from asking around and also what the rim manufacturer advised. Although I do realise that it may not be so easy or in reality its a headache, hence why I'm test fitting some first.

Please anyone correct me if I'm wrong about any of this if you have tried this combo or if it will affect performance even if they are much lighter JDM wheels?

There are cars on pwrx running that configuration from what I saw in the wheels thread, but most haven't dropped to the right 35 profile while increasing their tread size and have had to run massive camber.

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06 STi: 337hp @23psi on E85...
06 STi: 309hp @22psi on 98ron...

You've gone from an exhaust professional to a rim fitment specialist. Kudos man, you're a fucking genius

When you say concave... Do you mean dish?

Dish or concave spoke whatever you want to call it... now do you have useful info or a 9.5 rim to lend?

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06 STi: 337hp @23psi on E85...
06 STi: 309hp @22psi on 98ron...

Yes, if you want deep dish get a Datsun

Since you have a Subaru, stick to an 8.5 as it's function over form

Fair enough Sharpy...I want it to be functional too.

Help me understand though, how will they not be functional, as in what makes them so at 9.5? What makes the 8.5 functional vs the 9.5?

Its the first aftermarket rims I'll be getting for this car and need the info(and as much info I can get).
Cheers

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06 STi: 337hp @23psi on E85...
06 STi: 309hp @22psi on 98ron...

You're not that far behind.

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The older you get the more you realise that no one has a clue. Every one is just winging it.
MY05 STI

LOL @ stock suspension takes it no problems with the wheels you stated... I have an MY11 wrx with 18x9.5+30 and prior to that had 18x9.5+48 (stock being 17x8+53) each with 265/35/18 tyres respectively. Which, with all calculations gives an almost perfect overall diameter to stock. I can tell you, there is absolutely no way that stock suspension "takes it no problems" the amount of issues with it is ridiculous, heaps of suspension work was needed to give it a proper fit and without any rubbing. This is talking about the widebody wrx too, which you can fit much larger wheels in than an 07 sti... Just some information for you to think about.

Thanks heaps for the info T-Rex....Finally some decent factual information I can go by

I was just making some assumptions in that post, was waiting for someone who has tried it to give the right info...might have to stick to the 8.5s then... out of curiosity did camber adjustable coilovers fix the issues?

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06 STi: 337hp @23psi on E85...
06 STi: 309hp @22psi on 98ron...

I am generally just a forum lurker (I see EVERYTHING), but on the odd occasion I find a reason to post something. Glad that this was of assistance to you.