Need feedback on suspension bushing upgrades

[Obioban]

I think the difference is the e9X monoballs do 0 for nvh but the fcabs of the e46 tend to. Maybe by now some don't, but in the e9x none do

The e9X monoballs use an OE BMW monoball, which is NHV isolated by nylon. MOST of the e46 monoball FCABs just use a straight metal on metal monoballs, which do, indeed, transmit a bunch of NHV... but the ones I linked to (Turners) are sealed and nylon isolated, so minimal NHV add, like the e9X ones.
(e39 M5 has e9X suspension design and I'm running a BMW monoball in that location on it, so have experienced this first hand in my own car)

[IamFODI]

The e9X monoballs use an OE BMW monoball, which is NHV isolated by nylon. MOST of the e46 monoball FCABs just use a straight metal on metal monoballs, which do, indeed, transmit a bunch of NHV... but the ones I linked to (Turners) are sealed and nylon isolated, so minimal NHV add, like the e9X ones.
(e39 M5 has e9X suspension design and I'm running a BMW monoball in that location on it, so have experienced this first hand in my own car)

FWIW, Dinan does say their E9x front monoball is nylon-lined, but BW, GAS, TMS, and Syncro Design Works (likely choice because sold by FCP) don't.

[Obioban]

FWIW, Dinan does say their E9x front monoball is nylon-lined, but BW, GAS, TMS, and Syncro Design Works (likely choice because sold by FCP) don't.

At least GAS and SDW use OEM BMW monoballs, which are all nylon lined.

[IamFODI]

David @ SDW said by phone that their bearings for this part are not BMW but they are lined.