Rear Brake Discs UK-spec vented or solid?

[Billy THE Kidd 0]

Hello all, and apologies upfront as I would imagine this question has been asked many times already, however, I have spent nearly 1-hour searching through posts to no avail.

I have a UK spec 2015 GT86 and am looking to fit new brake discs and pads all around but, I'm having trouble establishing whether the rear discs I purchase should be vented or solid.  The currently fitted discs are solid but I believe they are cheap after markets and may not be correct. hence my query.

AFAIK the standard UK spec replacements should be as follows (including fronts):

FRONT: Ø294mm vented

REAR: Ø290mm ???

FYI, I am looking at MTEC and they seem to be offering non-UK spec size discs in both vented and solid but at different diameters so the confusion continues.

I'm not looking to upgrade my system (calipers) or anything like that, I just want to make sure I buy the right discs for the rear and the question is, vented or solid as the thickness will obviously be a factor with the standard calipers.

Cheers people for any support you can provide in clearing up this query for me.

[Leeky 84]

 100% Vented. I cant say I’ve ever seen an 86 with solid rear discs. Maybe they are from the Primo models that came with smaller brakes?

[Shad 20]

Definitely vented. Just bought a set of these for mine:

https://www.ebay.co.uk/itm/Brembo-Rear-Axle-Brake-Disc-Set-Subaru-BRZ-09-C662-11-/283705843947

[Billy THE Kidd 0]

Many thanks chaps, I'll order vented then.