Looking for comments on how "bad" the aftermarket Gas Struts are vs. OEM quality. There is a HUGE price gap.

OEM-400$

Monroe- 65$
KYB-70$
Sachs-150$
Bilstein-270$
Magneti Martelli- 100$

Kind of disregarding anything below 100$, but wondering about the quality of the 150-270$ range.
Having a feeling that OEM=Bilstein.

Your input is highly appreciated.


Espen