Tarett Engineering Cup-Series Front or Rear Control Arm Kit (718 GT4)

2026-03-10T10:01:41-04:00

Vendor: Tarett Engineering
Type: Suspension
Price: 1848.00 - 1875.00 (2 variants)

Designed to Fit

2020 - 2025 Porsche Boxster / Cayman (718 GT4)

Note - fits Front or Rear

Product Details

The Tarett Engineering Cup-Series lower control arms for your Porsche 718 GT4 front or rear suspension. With all the benefits of our Cup-Series arms for the earlier models, but reengineered to fit on the front of the 718 GT4.

For safety, the problematic 12mm ball joint design, used on the OEM arms, has been completely redesigned for a fool proof, larger, significantly stronger and more reliable design that you can count on. The ball joint consists of a replaceable over sized precision grade Teflon lined monoball bushing. High misalignment bushings provide safe and bind free operation at any ride height.

For The Race Spec (shown), solid thrust arm bushings and sealed monoball inner ends are used to eliminate the spongy rubber OEM bushings and provide a precision ride for improved feedback, steering response, and overall handling. Both are CNC machined from 6061-T6 aluminum alloy and are anodized red for a corrosion resistant and attractive finish. The solid thrust arm bushing is adjustable for increasing or decreasing wheelbase and adjustable caster.

For The Rubber Spec, both the LCA end and thrust arm bushings are heavy duty rubber. Like the Porsche GT3 arms, the thrust arm bushings have two caster adjustment holes.

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

The main housing is CAD designed and machined from 6061-T6 aluminum for optimized strength and weight. It's hard anodized for a highly durable corrosion resistant finish. The unique rib design allows for easy access to the inner arm hardware.

No-compromise proven design

PCA & POC legal GT3 arm replacement

Wheel base adjustability

Up to 2 deg. additional camber

Uses GT3 precision shims

6061-T6 construction

Anodized finish

Easy hardware access

Superior quality, performance and strength

Installation Instructions

Video

About Tarett Engineering

Tarett Engineering designs and manufactures high-performance suspension components for both club and professional auto racing. They use aircraft-quality materials and hold the highest quality standards to provide our customers with products they can depend on to last and perform up to and beyond their expectations. Their goal is to provide our customers with high quality performance products at reasonable prices. You can be confident that all of our products are fully engineered and tested to meet this goal.

They use the latest 3D CAD solid modeling and finite element analysis (FEA) software to insure that all our designs are reliable and optimized for strength, weight, and functionality for the applications that they are designed for.

Their machinists are meticulous in their craft, and fabricate every part to the same exacting high quality standards. Component fabrication is performed on state of the art CNC lathes and milling machines, resulting in every part meeting our requirements for quality and fit.

Their designs are tested and proven on both the street and track, and our customers are among the most respected and fastest in the country.

In addition to the products that we design and manufacture, we also carry suspension products from other manufacturers that we feel compliment our product line in design, value and quality.

Whether you're setting up a car for street or track, from a 911 to 997, we can help with the parts and advice you need. Please feel free to contact us for any of your suspension needs and questions.