Springs. OE or Klein pattern?

[Megaflow]

I have got a broken spring on the car, springs are obviously quite important to ride and handling, so the replacements must be right. The OE springs are £200 a pair, but I can get a pair of Kilen springs from the local factor for £80.

Having never had to replace a spring before, are Kilen any good, or am I better off with OE?

TIA

ETA: Kilen even. Fecking ipad...

Edited by Megaflow on Monday 9th March 22:32