SPL Parts SPL RTA 981 Rear Toe Arms for 2013-2016 Porsche 981 Boxster Cayman and 2017 Up Porsche 718 Boxster Cayman, manufacturer part number SPL RTA 981, is a vehicle-specific control arms component. Match the exact part number, application, mounting position, adjustment purpose, and included components before ordering.
Key Features
- Gun-drilled from 2024-T351 anodized aluminum with Teflon-lined FK Heim joints and SPL's signature rotating clamp design, these arms are engineered for high performance street use and motorsport competition alike.
- Under lateral load, those rubber bushings compress, deflect, and flex introducing inconsistent toe changes that the driver never asked for.
- Adjustment is built into the arm design, giving a wide range of toe correction that covers both factory-height and lowered applications.
- Construction and Materials Every SPL RTA 981 arm starts as a 2024-T351 aluminum billet.
- The aluminum is black anodized for corrosion resistance and appearance.
- The 360-degree rotation of the Heim joint allows the arm to move freely through the full suspension travel without binding at any point in the travel.
Fitment
| Years | Make | Model | Submodel |
|---|---|---|---|
| 2013-2016 | Porsche | Boxster | |
| 2013-2016 | Porsche | Boxster | S |
| 2014-2016 | Porsche | Cayman | |
| 2014-2016 | Porsche | Cayman | S |
Specifications
| Brand | SPL Parts |
|---|---|
| Manufacturer Part Number | SPL RTA 981 |
| Product Type | Control Arms |
| Fitment Type | Vehicle specific |
| Condition | New |
| Manufacturer Status | Current catalog match |
What's Included
One new SPL Parts control arms item identified by manufacturer part number SPL RTA 981. Hardware and companion components are included only when expressly stated by SPL Parts.
About SPL Parts
SPL Parts designs and manufactures precision suspension components for street, track, and motorsport alignment applications. Product selection must follow the current manufacturer application and installation information.
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Frequently Asked Questions
How do I confirm SPL Parts SPL RTA 981 fits my vehicle?
Match the full year, make, model, mounting position, suspension configuration, and every current manufacturer application note. Do not use a chassis or engine code as the vehicle model.
Is an alignment required after installation?
Yes. Any suspension or steering geometry change must be followed by a complete professional alignment and clearance check.
What should be inspected during installation?
Inspect related bearings, bushings, joints, fasteners, mounting surfaces, wheel and tire clearance, and the current SPL installation instructions.
Installation
Follow the current SPL Parts instructions for manufacturer part number SPL RTA 981. Confirm component orientation, adjustment range, clearances, fastener condition, torque specifications, and final alignment settings before driving.
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