M20 Starter Upgrade/Compatability?

[ClayW]

Is there an accepted upgrade for the M20 starter, possibly from a later BMW?

I might need to replace mine soon.

[MR 325]

Not that I know of. Can I ask why you feel you need an upgrade?

[ClayW]

Not that I know of. Can I ask why you feel you need an upgrade?

I'm sure that stock is fine. But, coming from the 2002 world, I was thinking that there might be a "stock upgrade" (a bolt-on, better starter from another BMW). For example, with an M10, you can use a starter from an M30 (huge, but really strong) or you can use an S14 starter (strong and lightweight).

I was just wondering if there was a similar upgrade for M20 starters.