
CTS TurboSKU: CTS-HW-559
CTS Turbo Rear Subframe Insert Set B8/C7 Audi S4/S5/S6/S7/Q5/SQ5
$149.99 Available
Free US shipping on orders over $250
Make sure this fits your car
Fits: S4 / S5 / RS5 B9, SQ5 B9 / FY
1
- Shop tested in Dallas
- Free pickup in Dallas
- Installs at our shop
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
Listed for these cars. Check the title and description for exact years, body styles and drivetrain.
| Make | Model | Chassis | Years | Fits |
|---|---|---|---|---|
| Audi | S4 / S5 / RS5 | B9 | 2018+ | |
| Audi | SQ5 | B9 / FY | 2018+ |
Not sure? Call or text 945-954-1142 with your car or VIN.
- Free US shipping on orders over $250.
- Free pickup at our Dallas shop, usually ready within 24 hours.
- Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
- Want it installed? Book the install at thegbmotors.com.
Full details are on our shipping and returns page.
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