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Billet Aluminum B4/B5 Audi A4/S4/RS4 & Rs2 Quattro Rear Crossmember/Differential Carrier Upgrade

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The 034Motorsport Billet Rear Crossmember / Differential Carrier for the B5 Audi A4/S4/RS4 Quattro is an absolute must for serious drag/road racing to prevent failure of the factory cast aluminum piece.

This high-quality piece was designed utilizing CAD software and is precision CNC machined in-house from billet aluminum.


  • B4 Audi S2/RS2
  • 1996 - 2001 Audi A4 Quattro (B5)
  • 2000 - 2002 Audi S4 (B5)
  • 2000 - 2002 Audi RS4 (B5)


  • 8D0 599 285 / 8D0599285

Please Note: Available with or without pressed-in Density Line Differential Carrier Bushings. Select option above.

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