Mk3 lowered springs going from 45 to 40 tyres

[wack]

Picked up my lowered mx5 on Friday, the tyres are on 3mm which is when I usually change them 205/45/17

My problem is I have a set of 600 mile pirelli Nero sat in the garage from a Fiat abarth 205/40/17

It's going to kill me to buy 4 new tyres when these are sat there , will there be any issues if I fit them or is it suck it and see

[wack]

That's what I was thinking, I was hoping for a no it'll be fine

[wack]

Given up on that idea , the tyres are legal but odd , I've always preferred the same brand all round, still haven't made my mind up on brand but I'm reading good things about kumho KU39 , I did read the KU31 was good too but black circles don't list it

[wack]

My tyres are showing the continental contisport5s 205/45/17 88W for £99 each which seems a very good price, the V rated tyres in the same size are £140