[BiturboS4] ECU compatibility

Philip Pace pjpace at yahoo.com
Mon Jan 13 07:31:26 EST 2003

The difference is that you have an early 2001 build car and the M is for the
later 2001.5 build car. Quite a number of differences. I have the M and my
girlfriend has the H. She's looking to sell her APR chipped box if you're
interested. BUT, she's heard that they are actually interchangeable. She wasn't
ballsy enough to try but said others have. I wouldn't if I were you.

If interested in the right box with an APR chip, let me know and I can ask her
selling price.

--- Tuan Nguyen <tuan at grdperformance.com> wrote:
> The M box will not work with your car.
> -----Original Message-----
> From: biturbos4-admin at audifans.com [mailto:biturbos4-admin at audifans.com]
> On Behalf Of Buczynsky Family
> Oops! I purchased an APR chip with ECU from someone selling their S4 6
> speed, and upon receiving it I see that that the last letter is
> different 8D0 907 551 M, where my stock CPU is 8D0 907 551 H.  According
> to APR's site, both are for an S4 6 speed.  Anyone know the difference?
> APR is closed and it's Friday night... don't want to fry something over
> the weekend.
> Thanks, impatient Pete

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