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CTS Turbo Rear Subframe Insert Set B8 Audi S4/S5/Q5/SQ5

Availability:
5+ in stock, ready to be shipped

Ships in 3–5 business days

SKU CTS-HW-559
Original price $149.99 - Original price $149.99
Original price
$149.99
$149.99 - $149.99
Current price $149.99
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The CTS Turbo Rear Subframe Insert Set is designed to eliminate subframe movement, improve chassis rigidity, and enhance handling performance in your Audi B8 S4, S5, Q5, and SQ5. These inserts reinforce the factory subframe bushings, reducing deflection and ensuring better power transfer without introducing significant NVH.

Key Features:

  • Reduces subframe movement for improved handling and stability.
  • Made from high-strength billet aluminum for durability and long-lasting performance.
  • Enhances cornering response and road feel by eliminating excessive play in the rear subframe.
  • Reduces drivetrain slop, leading to more direct power delivery.
  • Non-permanent installation—works with factory subframe bushings.
  • Minimal NVH increase, maintaining daily driving comfort.

Performance Benefits:

  • Sharper handling: Reduces unwanted movement in the rear subframe for a more precise and connected driving experience.
  • Improved stability: Enhances rear-end control during acceleration, braking, and cornering.
  • More efficient power transfer: Minimizes flex for better throttle response and drivetrain performance.

Perfect for enthusiasts and spirited drivers who want improved driving dynamics without sacrificing ride comfort.

Fitment (check notes below):

  • 2010-2017 Audi S4 (B8/B8.5)
  • 2010-2017 Audi RS4 (B8/B8.5)
  • 2008-2017 Audi S5 (B8/B8.5)
  • 2010-2017 Audi RS5 (B8/B8.5)
  • 2009-2017 Audi Q5 (B8/B8.5)
  • 2013-2017 Audi SQ5 (B8/B8.5)
  • 2012-2018 Audi A6 (C7/C7.5)
  • 2012-2018 Audi A7 (C7/C7.5)
  • 2012-2018 Audi S6 (C7/C7.5)
  • 2012-2018 Audi S7 (C7/C7.5)


    NB: Before ordering, check the rear subframe mounts. If the metal cover is oriented left-to-right (towards the wheels) then the inserts are compatible. If the metal cover is oriented front-to-back (towards the front/rear) then the inserts will not fit, use CTS-HW-558 instead.

    Always replace the subframe bolts with genuine Audi parts, and torque to spec: 115Nm + 90deg.
    Sedans require 4x WHT004756A
    SUVs require: 2x WHT004756A, 2x WHT005800

    This part also goes by the following cross reference.

    Cross Reference Part Number:

    Fits These Vehicles 4 applications
    S5
    Make Model Engine Years
    AUDI S5 (B8/8.5) 2009–2016
    Q5
    Make Model Engine Years
    AUDI Q5 (B8/8.5) 2009–2017
    S4
    Make Model Engine Years
    AUDI S4 (B8/8.5) 2010–2017
    SQ5
    Make Model Engine Years
    AUDI SQ5 (B8/8.5) 2013–2017
    Fits 4 vehicle applications Check vehicle fitment before ordering View fitment