Larger HFM for OBDII //M3

[jkerouac@xxxxxxxxxxxxx]

I've noticed Dinan advertising a half inch larger diameter HFM for the 
96-99 //E36 //M3.

Does anyone know what OEM hfm he is using, or possibly a sensor from one 
and the larger diameter tube from another?

Alternatively, has anyone found larger HFM that can be used on the 
OFDII?   I agree its up to me to then meter and reprogram the ECU as 
needed to match the increased airflow, but finding the larger HFM to 
reprogram to is step 1.
   Possibly an HFM from some Japanese car would be interchangeable with 
only wiring connector changes needed, same as using a Supra turbo's AFM 
on modified or larger displacement big 6 BMW engines.
Thanks,

'jk

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