Hardrace Audi B9 Rear Toe Arms
Get precise rear toe control on your Audi B9. These Hardrace rear toe arms add the adjustment you need to set toe correctly after lowering, or to fine-tune handling for fast road and track use. Strong materials and quality joints give a tighter, more direct feel than the factory arms.
What it does
Toe is the angle your rear wheels point in or out when viewed from above. Small changes make a big difference to stability and tyre wear. These adjustable arms let you set rear toe accurately, something the standard parts often cannot do once the car is lowered.
Why it matters
- Restore factory alignment after lowering to protect tyre life.
- Improve straight-line stability and cornering confidence.
- Sharper turn-in and more consistent rear-end grip.
- Stronger, more precise feel than OEM stamped arms.
- Corrosion resistant finish for long service life.
- Direct bolt-on using factory mounting points.
Construction
Hardrace builds these arms from high-strength steel alloy for durability and stiffness. They are ED coated and painted to resist rust. The design uses hardened rubber bushings and pillow ball bearings to reduce flex and give a more direct response than standard rubber-only joints.
Fitment
Designed for Audi B9 platform models, including A4, S4, A5, S5, RS4 and RS5 (2016-on). Use our vehicle lookup to confirm fitment for your exact car, or check the Vehicle Fitment tab for full details.
Installation and alignment
Direct replacement for the factory rear toe arms. Set the length to a safe starting point, then finalise on an alignment rig. Torque fasteners with the suspension at ride height.
A full four-wheel alignment is required after installation.
Key details
| Brand | Hardrace |
| Product | Rear Toe Arms – Adjustable |
| SKU | HRD-Q1445 |
| Location | Rear axle – left and right |
| Adjustment | Toe |
| Construction | High-strength steel alloy |
| Joints | Hardened rubber bushings and pillow ball bearings |
| Finish | ED coated and painted |
| Fitment type | OE direct fit |
| Supplied as | Pair |

