What does 'externally double adjustable' mean for this strut insert?

This means you can adjust both the rebound (how quickly the strut extends) and the compression (how quickly it compresses) settings. The 'external' part means you can do this adjustment from outside the strut assembly, often with a simple knob or tool, without disassembling the strut.

Is this strut insert a complete strut assembly?

No, this is a strut insert cartridge. It is designed to be installed inside your vehicle's existing strut housing, replacing the original damper. You will need to reuse your existing strut housings and typically pair this with performance springs.

How many strut inserts do I need to buy?

This product is sold individually. For a typical vehicle with front struts, you will need to purchase two of these inserts to replace both left and right side dampers.

KONI 8611 Series Strut Insert 8611 1257RACE

Name: Koni RACE (Yellow) Sturt Insert - Road Racing Dampers
Brand: KONI
SKU: koni-koni-race-yellow-sturt-insert-road-racing-dampers-t14-4317911
Price: 529.25 USD
Availability: InStock

Koni RACE (Yellow) Sturt Insert - Road Racing Dampers

$529.25

Only 8 left in stock

Koni RACE (Yellow) Sturt Insert - Road Racing Dampers. Externally double adjustable for precise tuning.

Key Features

This is a KONI 8611 Series external double adjustable racing strut insert.
The yellow paint finish is a signature KONI look.
It offers external adjustability for both rebound and compression damping.
This is a cartridge insert designed to replace the factory damper within your strut housing.
Built for road racing applications where precise suspension tuning is important.

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Product Details

If you're building a dedicated road racing machine, getting the damping just right is critical for handling and tire wear. The KONI 8611 Series strut insert is built for this purpose, offering external double adjustability so you can fine-tune your suspension's response for specific tracks and conditions. This is a cartridge insert, meaning it replaces the factory damper inside your existing strut housing, making it a popular choice for many performance applications.

What sets this insert apart is its external adjustability. You can easily change both the rebound and compression settings without having to remove the strut from the car. This allows for quick adjustments between practice sessions or even during a race day to adapt to changing track conditions or tire pressures. The yellow paint is a classic KONI identifier, and these are well-built units designed to withstand the rigors of track use. They are intended to be used with performance springs and often paired with other suspension upgrades to create a complete, track-focused setup.

When installing these, remember they are designed to work within a specific strut housing. You'll want to ensure your existing housings are in good condition and compatible with this insert type. Because these are racing components, they are sold individually, and you'll need to purchase two for a typical front-wheel-drive vehicle setup. Always refer to KONI's installation guide for the most accurate procedure and any specific requirements for your application.