Good-Win Racing Mazda Performance Parts



Mazda3 2004-2017 · Suspension

Part Number: 61-05730

Application: 2004-2009

Price: $621.99


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FSD is the abbreviation of Frequency Selective Damping. It is the latest technology of Koni, specifically designed to combine the ultimate in comfort and road-holding.

This no-compromise shock absorber was launched to the world in 2005. A revolutionary new technique which combines the benefits of firm and comfortable suspension in a single perfect shock absorber.

Firm for sporty driving on even road surfaces. Comfortable for a smooth ride on uneven road surfaces. If you are able to change the damping force level in relation to the frequency of the movement of the vehicle, you create the possibility to solve the conflict in terms of comfort and handling ever present in conventional dampers.

The Koni FSD technology does just that! In effect giving you Active Ride Control. The groundbreaking FSD technology has been designed and patented by Koni to end the compromise between comfort and road-holding. This new feature can be used as an integrated part of the hydraulic valving system inside the damper.

Consequently, no additional cables, sensors, or any other electronic devices are needed to operate this system. It operates fully hydraulic and frequency selective and is therefore an economical and effective solution to improving a cars handling. It will give Ride and Handling Engineers a constructive, additional variable in fine-tuning the cars behavior.

* Excellent ride quality on all road surfaces
* Available for most newer cars
* Gold metallic finish shocks
* Less expensive than electronic systems
* Lifetime Warranty

*** Product images may differ from actual product appearance ***


I absolutely love my Roadster Sport headers, mid pipe and Q muffler. I have owned a lot of cars over the years and the quality of your product is truly exceptional. The ability to tune the Super Q is very much appreciated.

-- Tony G.

I red'all the parts in the order I placed and installed them in my car yesterday. I am beyond happy. The install went without a hitch. The results were fantastic. The new brakes track straight, make no noise, and stop the car authoritatively. The new rotors look pretty cool, which we all know isn't all that important, but having 6 women offer to bear your children, because your car looks SO cool is a good problem to have. Thank for great products and service.

-- Chaz C.