I have the Karui 4.4Kg flywheel (brought from Brian at Turtle - SUPERBLY HELPFUL!) matched with an Exedy Stage 1 clutch. Its a great combo for when you are giving it the beans, and not too bad for daily driving. If I was buying again I would go for the 4 or 4.4kg flywheel and an OEM clutch.
I...
I run Koni Yellows with Eibachs pro kit springs on my EM1 and couldnt be happier with them. They are perfectly balanced between firm (note: NOT hard) and being able to cope with bumps.
If you crank the konis all the way to hard then you might struggle but I use them on the softer setting and...
How about a set of Rota Wheels? I'm running a promo at the moment - http://www.ek9.org/forum/wheels-tires-suspension/13445-rota-wheels-special-offer.html#post142012
Or myself - I am running an EK9.org promo right now.... which can be found here - http://www.ek9.org/forum/wheels-tires-suspension/13445-rota-wheels-special-offer.html#post142012
2 things to consider....
Firstly: 225mm = 8.858 inches.... so you have near enough 2inches extra tyre on a 7 inch wide wheel...
Secondly - why fit wider rear wheels to a front wheel driver car? Seems a bit pointless to me?