The SPC Performance front upper control arm kit adjusts front camber and caster plus or minus 1.5 degrees across Audi's larger MLB-platform models and the Porsche Cayenne. The forged aluminum arms use OE-style booted ball joints and bonded rubber bushings to maintain factory ride, handling and noise, vibration and harshness parameters. The multi-link front suspension creates a virtual steering axis inclination; the factory does not publish a caster specification, and SPC recommends 5 to 6 degrees of caster for tracking and return to center. The kit includes four arms to replace both upper links on both sides of the vehicle.
- Type: front upper control arm kit
- Adjustment: plus or minus 1.5 degrees camber and caster
- Position: front, upper
- Material: forged aluminum
- Ball joints: OE-style booted
- Bushings: bonded rubber (factory NVH)
- Sold as: kit of four arms (both sides)
- Part number: 81393
Vehicle Applications
- 2019 Audi A6
- 2020 Audi A6
- 2021 Audi A6
- 2022 Audi A6
- 2023 Audi A6
- 2024 Audi A6
- 2025 Audi A6
- 2026 Audi A6
- 2019 Audi A7
- 2020 Audi A7
- 2021 Audi A7
- 2022 Audi A7
- 2023 Audi A7
- 2024 Audi A7
- 2025 Audi A7
- 2022 Audi Q4 e-tron
- 2023 Audi Q4 e-tron
- 2024 Audi Q4 e-tron
- 2018 Audi Q5
- 2019 Audi Q5
- 2020 Audi Q5
- 2021 Audi Q5
- 2022 Audi Q5
- 2023 Audi Q5
- 2024 Audi Q5
- 2025 Audi Q5
- 2017 Audi Q7
- 2018 Audi Q7
- 2019 Audi Q7
- 2020 Audi Q7
- 2021 Audi Q7
- 2022 Audi Q7
- 2023 Audi Q7
- 2024 Audi Q7
- 2025 Audi Q7
- 2026 Audi Q7
- 2019 Audi Q8
- 2020 Audi Q8
- 2021 Audi Q8
- 2022 Audi Q8
- 2023 Audi Q8
- 2024 Audi Q8
- 2025 Audi Q8
- 2026 Audi Q8
- 2024 Audi Q8 e-tron
- 2025 Audi Q8 e-tron
- 2020 Audi RS Q8
- 2021 Audi RS Q8
- 2022 Audi RS e-tron GT
- 2023 Audi RS e-tron GT
- 2024 Audi RS e-tron GT
- 2021 Audi RS6
- 2022 Audi RS6
- 2023 Audi RS6
- 2024 Audi RS6
- 2025 Audi RS6
- 2026 Audi RS6
- 2021 Audi RS7
- 2022 Audi RS7
- 2023 Audi RS7
- 2020 Audi S6
- 2021 Audi S6
- 2022 Audi S6
- 2023 Audi S6
- 2024 Audi S6
- 2020 Audi S7
- 2021 Audi S7
- 2022 Audi S7
- 2023 Audi S7
- 2024 Audi S7
- 2025 Audi S7
- 2018 Audi SQ5
- 2019 Audi SQ5
- 2020 Audi SQ5
- 2021 Audi SQ5
- 2022 Audi SQ5
- 2023 Audi SQ5
- 2024 Audi SQ5
- 2025 Audi SQ5
- 2020 Audi SQ7
- 2021 Audi SQ7
- 2022 Audi SQ7
- 2023 Audi SQ7
- 2024 Audi SQ7
- 2025 Audi SQ7
- 2026 Audi SQ7
- 2020 Audi SQ8
- 2021 Audi SQ8
- 2019 Audi e-tron
- 2020 Audi e-tron
- 2021 Audi e-tron
- 2022 Audi e-tron
- 2023 Audi e-tron
- 2022 Audi e-tron GT
- 2023 Audi e-tron GT
- 2019 Porsche Cayenne
- 2020 Porsche Cayenne
- 2021 Porsche Cayenne
- 2022 Porsche Cayenne
- 2023 Porsche Cayenne
- 2024 Porsche Cayenne
- 2025 Porsche Cayenne
FAQ
How much adjustment does the 81393 kit provide?
Plus or minus 1.5 degrees of front camber and caster.
Which vehicles does it fit?
Audi MLB-platform models including the A6, A7, Q5, Q7, Q8, e-tron and SQ/RS variants, plus the Porsche Cayenne. See the Vehicle Applications list.
What is included?
Four forged aluminum upper arms, enough for both upper links on both sides of the vehicle.
What caster setting is recommended?
The factory does not publish a caster spec; SPC recommends 5 to 6 degrees for tracking and return to center.