Cup Series Control Arm Kit For Porsche 996 (1999-2004), 997 (2005-2012), 991 (2012-2018), 986 Boxster (1997-2004), 987 Boxster (2004-2012), 987 Cayman (2006-2012), 981 Boxster/Cayman (2013-2016) Models.

Introducing the Tarett Engineering Cup-Series Lower Control Arm Kit, a superior and no-compromise design for your Porsche 996, 997, 986, 987, 981, and 991 (excluding GT4 and 991 GT3 models). This isn’t just another billet replica; it’s an advanced design that is superior to any other aluminum arm on the market.

For enhanced safety and reliability, the problematic 12mm ball joint design has been completely overhauled. This new, significantly stronger, and more reliable design utilizes a replaceable, oversized, precision-grade Teflon-lined monoball bushing with high misalignment bushings for safe and bind-free operation at any ride height.

The kit features solid thrust arm bushings and sealed monoball inner ends, replacing the spongy OEM rubber bushings. This provides a precision ride with improved feedback, steering response, and overall handling. Both are CNC machined from 6061-T6 aluminum alloy and are anodized red for an attractive, corrosion-resistant finish. The solid thrust arm bushing is also adjustable for modifying wheelbase and caster.

Camber and track width can be accurately and repeatedly adjusted with precision GT3-style shims. This competition-proven design allows for up to 20mm of adjustment per side and up to an additional 2 degrees of negative camber.

The main housing is CAD designed and machined from 6061-T6 aluminum for optimized strength and weight, and is hard-anodized for a highly durable, corrosion-resistant finish. Its unique rib design provides easy access to the inner arm hardware, a common problem with OEM and other aftermarket arms.

Key Features:

• Superior Design: No-compromise design with superior quality, performance, and strength.

• Material: 6061-T6 aluminum construction, hard-anodized finish.

• Ball Joint: Redesigned, stronger ball joint with a replaceable, oversized, Teflon-lined monoball bushing.

• Adjustability:

  • Camber: Up to 2 degrees of additional negative camber using GT3 precision shims (sold separately).

  • Track Width: Up to 20mm of adjustment per side.

  • Caster/Wheelbase: Adjustable thrust arm bushings.

• Improved Handling: Solid thrust arm bushings and sealed monoball inner ends eliminate spongy OEM bushings for improved feedback and steering response.

• Ease of Use: Unique rib design allows for easy hardware access.

• Compatibility:

  • Base Kit: Fits all 996/986 front and rear, and all 997/987 rear.

  • With Adaptors: Front kits for 997/987/991 and front/rear for 981 require optional Litronic bracket and thrust arm adaptors.

• Kit Contents: Each kit comes complete for one axle (both sides, front or rear).