[dp.]

Hello guys,
I’m currently rebuilding my N55 and I’ve bought the KS piston rings.
Are these good ? I know they supply OEM pistons for some brands,but heard a negative opinion about them from a local mechanic (although without any arguments) and that I should’ve bought MAHLE.
Anyone with KS experience ?
If they’re not up to OEM quality I can return them.

Thanks in advance !

[F32Fleet]

Originally Posted by dp.

Hello guys,
I’m currently rebuilding my N55 and I’ve bought the KS piston rings.
Are these good ? I know they supply OEM pistons for some brands,but heard a negative opinion about them from a local mechanic (although without any arguments) and that I should’ve bought MAHLE.
Anyone with KS experience ?
If they’re not up to OEM quality I can return them.

Thanks in advance !

I haven't. BMW uses them for either main or rod bearings on the N55.

KS also sells an eccentric shaft for the the N55 but I confirmed they're not the OE supplier.