Rear Subframe Insert Set

The CTS Turbo Rear Subframe Insert Set is engineered to enhance the handling performance and chassis rigidity of your Audi B8/B8.5 S4, S5, Q5, and SQ5. By reinforcing the factory subframe bushings, these inserts significantly reduce deflection and eliminate unwanted subframe movement. Constructed from high-strength billet aluminum, this set is built for durability and long-lasting performance. The design focuses on reducing drivetrain slop, which leads to more direct power delivery and a more connected driving experience. Installation is non-permanent and works with the existing subframe bushings, while importantly, it introduces only a minimal increase in Noise, Vibration, and Harshness (NVH) for maintained daily driving comfort. Key benefits include sharper handling, improved stability during acceleration and braking, and a more responsive throttle due to minimized flex in the rear subframe. These inserts are an ideal upgrade for enthusiasts seeking improved driving dynamics without compromising ride quality. This product fits the following vehicles: - 2010-2017 Audi S4 (B8/B8.5) - 2008-2017 Audi S5 (B8/B8.5) - 2009-2017 Audi Q5 (B8/B8.5) - 2013-2017 Audi SQ5 (B8/B8.5) Specifically, it is compatible with: - Audi Q5 B8 (2009-2017) with 3.2L V6, 2.0T, 3.0T V6, or TDi engines. - Audi RS5 B8 (2013-2015) with 4.2L V8 engine. - Audi S4 B8 (2009-2016) with 3.0T engine. - Audi S5 B8 (2009-2016) with 4.2L V8 or 3.0T engine. - Audi SQ5 B8 (2014-2017) with 3.0T engine.