No purchase necessary. See official rules.
No purchase necessary. See official rules.

Lightweight Single-Mass Aluminum Flywheel (12lbs)

Allows for faster revving and easier rev matching when downshifting
Mfg Part #
ECS Part #
$539.00 (Sale - Save 8%)
Availability: Back Ordered
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Product Details

Please Note: Only available for purchase and shipment within the United States

This lightweight single-mass aluminum flywheel fits B5 Audi S4 & C5 Audi A6/Allroad models with the 2.7T engine. Weighing in at 12 pounds, or about 15 pounds lighter than stock, this billet aluminum flywheel allows for faster revving and easier rev matching when downshifting. 

This flywheel is machined in-house at 034Motorsport from billet aluminum and engineered to be a direct high-performance replacement for the failure-prone dual-mass factory unit. Includes replaceable steel friction surface and steel tone ring for crank sensor pickup.


  • 6061 Billet Aluminum Construction
  • Replaceable Steel Friction Surface
  • Steel Tone Wheel - Attached securely with threaded fasteners for problem free RPM signal. (Some flywheels are only attached with roll pins which can fall out!)
  • Facilitates OEM Flywheel Bolts and Pilot Bearing
  • Weighs 12 lbs. (15 lbs lighter than stock, for excellent drivability and increased engine revving speed and response.)
  • New Flywheel Bolts & Pilot Bearing Included!


  • 2000 - 2002 Audi S4/RS4 (B5)
    • 2.7T
  • 1998 - 2004 Audi A6 (C5)
    • 2.7T
  • 2001 - 2003 Audi Allroad (C5)
    • 2.7T


  • 078105266N / 078 105 266N

Georgeous machine work, will fit any 2.7T or RS4 clutch package.

**Due to the nature of lightened single mass flywheels added "NVH" or "chatter" will or may occur during operation. Accompanying modifications can also increase or decrease the amount of "NVH" or "chatter" in the drivetrain. Please contact our sales team with any questions.**



Cross Reference
  • 078105266N
  • 0345031013

This Part Fits the Following Vehicles

Make Model Submodel Engine
Audi B5 S4 All 2.7T
Audi C5 A6 Quattro 2.7T
Audi C5 Allroad Quattro 2.7T
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.


ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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