will300

Look here, there is pretty much every wheel size and tyre combo listed:
https://www.ft86club.com/forums/showthread.php?t=7535

Well technically you not currently legal anyway. 😂

As @Church said, if you buy a supercharger and keep the stock exhaust system you should legally pass the emissions test without issue. You can get away with changing the catback and still be legal. It's when you start changing exhaust manifold & front pipe is when you'll have problems.
From a legal point the car needs to be as it left the factory or with an OEM spec equivalent part. In the case of our cars, they have two catalytic converters if you remove one of them it's technically no longer compliant and therefore should be an instant fail.
Now the grey area is, you could have a decat exhaust manifold but the stock front pipe (vice verse) and then pass the emissions test. This isn't legal as you've still removed a cat, but if the MOT tester can't see the decat and you've passed the emissions, they'll mark it down as a pass anyway. 
As for turbo kits, the majority don't have catalytic converters fitted to them and I can only think of 4 turbo kits that do an option for a catted version, these are:
Works Turbo Kit
HKS Turbo kit
Blitz turbo kit
MPS Engineering 

Don't report me, Will! 😂

Went out for a little run to keep the battery happy. Rushed off a couple of photos as couldn't resist (despite the questionable parking) being right in front of the reservoir.
 


 

As @Booboo mentioned in the 1st post there is currently a 5 month lead time. The prices you've just posted are for the shipping duration.
FYI: "Please choose a courier option for shipping the wheels from Japan to the UK. This does not change production time but the time taken to get the wheels from Japan to the UK."

They'll fit but it's not something I'd run as there would be too much sidewall flex. 
Best to just say with 215 on 7" wide/stock width wheels. 

+25 should fit, it'll be aggressive though. +35 is better in that size.

Most of the high end wheels like OZ, Enkei, Rays, Weds, etc will all cost around £1400+ minimum for a full set 
A similar wheel is the Sparco DRS (Sparco wheels are made by OZ) - which you can get in 18x8 +35 for around £800:
https://www.ozracing.com/uk/alloy-wheels/sparco/sparco-drs
https://www.demon-tweeks.com/uk/sparco-wheels-drs-alloy-wheels-in-rally-bronze-set-of-4-2006683/
There is also the Japan Racing JR21 as these are fairly similar:
https://jr-wheels.com/category/jr21

The compression ratio is 12:5:1. 
It's listed in the first link @BRZ-123 posted.

Still for sale....

@will300
 

Technically if you remove either catalytic converter from the car, it should be an MOT fail. Whether it passes the emissions or not. 
 

@Kaltorak hit Ctrl + F5 to refresh the page Cache. I checked the link and it worked for me in Chrome, then tired it in Firefox and it had the same issue you've got, but refreshing the page fixed it.

I tried to order a supercharger but the specification had changed to LHD and didn't want to take the risk even though the part code was for RHD. Got any more? 
Car search didn't work and once in a category it was impossible to filter either by car type or product type once you were in a category. Easiest way to find what I was looking for was to search directly e.g "GT86 brakes" or go through the brands and scroll for what I was looking for.

Down to Abbey Motorsport tomorrow for the Exedy Stage 1 clutch and MoT.
Hope Scott's got the coffee machine warming up...

For reference, Tuning Developments use the Exedy Stage 1 kit in their Turbo Stage 2 package, which produces more torque than the 280nm you listed above. 
I know the power delivery will be different but I think Exedy understate their performance figures on their clutches.

If that's the route you want to take, go for it.
It's also worth mentioning when ordering the Fuji manifold directly from the supplier it also comes with the overpipe, but there is no mention of that in the 2nd hand sales thread
See: https://www.importcarparts.co.uk/parts-info?id=14006&cat=89&sub=3583&sec=0&var=0&dc=&gen=&searchKey=&searchPart=
Not that you should need the overpipe as it should fit the standard one.

No, it's not like an Open Flash Tablet where there are maps readly available for everyone. 
You need to purchase a custom map from a tuner or create your own.
Fensport is £336.00 for mapping without an Ecutek License.
If you need a license it's: £552.00

The simplest thing for you to do, is take it to Fensport / Abbey / Tuning Developements / Amber Performance and ask them to map it for you.
If you want to remote map your car using a pre-made map you need:
Ecutek kit with Programming
Ecutek License - Assuming your car doesn't already have a license assigned to it. 
 
If you wanted to create your own custom map you also need, in addition to the above.
Ecutek RaceRom - BRZ Upgrade for Pro ECU
Fensport offer a rental Ecutek programming kit, which might be a good option. You'd still need the license and someone to tune it. 
Search for Ecutek on the Fensport website (I'm using Fensport as it's easy to find the various option on their website):
https://www.fensport.co.uk/search?q=ecutek 
 
 

Yes, assuming you know how to create your own custom map.

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I know it's not BRZ or even GT86, but I am so pleased with this work that's been done I wanted to show it off and give a shout out to Revolve Automotive and I know there's fellow detailing nerds like me on here too. If you're in the North and thinking of getting some paint correction and protection, look no further. Usually I like to get my hands dirty when it comes to keeping my car clean, but sometimes a job needs indoor space and professional skills, way beyond my own. I've known Paul at Revolve for a few years via a 350z club and a while back he struck out to follow his passion for detailing. I have been watching his work online ever since. After letting him practice on lesser marques like Maserati, Aston Martin and Ferrari, I've been looking forward to having the right job to send his way. I wasn't expecting perfect paint when I purchased on a 6 year old black car, but one of my first visits to the petrol station revealed just how bad things were.

 
As well as correcting this horrorshow, I also booked in to have some protection applied and a "little" job that's been on my list for a while. I've never really liked the black badges. First the easy bit.

Then the template.

All done.

 
I'm super pleased with the result. I know chrome is not for everyone, but it is literally the only non-black part of the whole car, so I think it's not too bling. The spacing and alignment are absolutely spot on.
Onto the paint. As you can see, he had his work cut out. 

 
But he was more than match for the hard Porsche paint. Two stages of correction has given it a beautiful depth, removed all the minor marks and a lot of the big ones too. Where they've not been eliminated, they've been softened so much as to make them almost unnoticeable.


 
 
Also the wheels came off for some love and protection on them and the callipers too.

He cleansed the leather and alcantara, leaving a layer of protection inside and a nice little signature that my ass has since dealt with.

He also stocked me up on the good stuff from Envy. I am a big fan of all the Envy products I have used to date, not tried Iron Awe yet so looking forward to that.

As well as the Envy gear, I left with some SC-MIST to keep the ceramic protection topped up. As well as making her look almost perfect, Paul's done his best to lock it in with a couple of layers of Envy Futureproof+. I'm impressed just by the gloss and I hope I'll be the same for many months to come, perhaps even years.
 
After all that, now for the glamour. She came up alright.



 
Looking ever better outside in the sunshine.





 
Delighted doesn't come close to how pleased I am with the outcome. From following Revolve Automotive on Facebook for years, I had really high expectations but Paul's manage to surpass them with his skill. It's almost a different colour, much more like the 'Jet' black that Porsche call this shade. On top of doing amazing work on the car, the process of booking in, discussing what work was needed, talking through options for coatings, agreeing a price and even throwing in a lovable courtesy car - the whole service was superb and I'm really, really pleased. If you want to do something special for your pride & joy, this is a pretty good option. I'd be taking the BRZ over if it wasn't for the fact it needs paint on the front bumper and the Cayman has blown my budget for a few months. On top of this fantastic work, it's recently been in for retrofit of cruise control, had new rubber all round and a minor oil leak sorting. The good thing is, all the interesting mods I might usually think to do, involve adding bits from it's bigger GT brothers - which makes them so expensive I'm not even entertaining the idea