I'm doing an upgrade on my 1998 M3 and have run into a snag....I bought the wrong hfm.

At any rate...told by AA I need a Porsche 3.5" HFM and I'm trying to source one used - and I forgot to ask them the part #.

I have searched, but get some conflicting feedback regarding the part # to search for....Can anyone clarify the Part #?

Porsche 3.5" HFM - pn# 0 280 217 803 - This is the part # I've found on one posting.

A seller has told me that a different Porsche 3.5" HFM with the last digits being 809 will work.

Can anyone confirm?

FYI - This will be final configuration for the OBD-II S52:

Porsche 3.5" HFM of some part #...
Schrick Cams
Schrick Intake
Cold Air Intake
24lb Injectors
Track Pipe/Race Exhaust
ASC Delete
Active Autowerke Race Software

Thanks in advance!!!

There should be some IPrepared club racers willing to sell them. :)

That's what I was thinking...anyone...anyone....Bueller??

There should be some IPrepared club racers willing to sell them. :)

I'm doing an upgrade on my 1998 M3 and have run into a snag....I bought the wrong hfm.

At any rate...told by AA I need a Porsche 3.5" HFM and I'm trying to source one used - and I forgot to ask them the part #.

I have searched, but get some conflicting feedback regarding the part # to search for....Can anyone clarify the Part #?

Porsche 3.5" HFM - pn# 0 280 217 803 - This is the part # I've found on one posting.

A seller has told me that a different Porsche 3.5" HFM with the last digits being 809 will work.

Can anyone confirm?

FYI - This will be final configuration for the OBD-II S52:

Porsche 3.5" HFM of some part #...
Schrick Cams
Schrick Intake
Cold Air Intake
24lb Injectors
Track Pipe/Race Exhaust
ASC Delete
Active Autowerke Race Software

Thanks in advance!!!

As I recall,

The BMW 540 HFM # is 0 280 217 800 the BMW Euro HFM is 0 280 217 803.

The Porsche HFM # is 0 280 217 809