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Discussion Starter · #1 ·
Just wondering if anybody knew if the 2010 TTRS Rear Diff is compatible with the 2009 TTS?

I may have to replace mine due to a failed haldex pump that Audi dont seem to supply separately!

The only thing I can see that may be different is the final drive ratio?

Would it make a difference if Im putting out around 350bhp and 450nm of torque now seeing as though that is close to the TTRS when stock?

Thanks guys!
 

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im not sure but based on ETKA the some of the parts number seems different. but then again i read somewhere the HPA haldex controller seems to share the same gen4 for OBR rear diff vs OBR rear diff in the RS
 

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Discussion Starter · #3 ·
Cheers for the reply Vallance...

I guess this will need further looking into...

Hopefully all I need is the pump anyway which I would like to think is the same as many cars with the haldex - S3, TTS, TTRS, Etc...
 
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