- 07/08/2025
- 4 Min Read
- By: Christian Schaefer
KONI Dampers Might Be The Best Choice You Know Nothing About
European cars are often spoiled for choice when it comes to performance aftermarket suspension. Choices range from mildly stiffer dampers to wildly adjustable, motorsport-level coilover systems. Oddly, though, there’s only one game in town for a competent and long-proven middle ground. For whatever reason, KONI is the sole manufacturer of adjustable dampers for many of our favorite models. While that may sound a little disheartening, the Dutch company’s century-long history of providing and innovating products in the automotive space should remove all worry.
KONI Shocks In Our Vehicles
Three decades before Carl Benz and Gottlieb Daimler patented the first automobile, A. de Koning in the Netherlands was in the saddlery business, making horse saddles and harnesses. A few decades later, the rise of the automobile jeopardized his company, and he had to adapt to survive. The brand, renamed KONI, took the experience crafting saddles and began producing leather spring covers for the then-modern suspension systems of the time. However, it wasn’t until the post-WWII industrial boom that KONI left the leather behind and developed the suspension damper as we know it today.
If you’ve ever ridden in any car built beyond the late forties, you’ve seen and felt the result of KONI’s innovation, the world’s first adjustable hydraulic telescopic shock absorber. What was next-generation technology upon its debut in 1945 is now a fundamental element of current suspension systems, providing control, comfort, and stability. It’s grown from a relatively simple component into one with dozens of variations that shape every car’s driving and handling characteristics.
In the decades following the release of the telescoping shock absorber, KONI kept busy. The French government tapped the Dutch firm to develop the suspension on the TGV, France’s high-speed train, akin to Japan’s Bullet Train. They were even tabbed to provide the shock absorbers for the London Eye Ferris Wheel. However, their most significant successes were in the automotive sector.
Early sports cars produced by Porsche, Jaguar, and Ferrari in the late ‘50s were fitted with KONI shocks—painted their iconic orange color—either as standard or an option. The following decades saw models like the 944 Turbo, 911, XJ6, 308 GTB, and even Lamborghini’s Gallardo privy to the best the Dutch firm could offer. Those who weren’t supplied originally with the shocks were supported in the aftermarket, helping the name become synonymous with handling performance.
KONI also supported motorsports. Their first major success was the 1971 Formula 1 world title after supplying the dampers for Sir Jackie Stewart’s Tyrrell. The connection to formula cars remains today, as they continue to supply F3 and F2 teams with the motorsport-level dampers required at that level. While not as developed as those series, you’ll find KONI dampers in many SCCA and similar series competition cars, especially for autocross.
Nowadays, the KONI line-up is as complete as ever. Several new product lines have entered the fold in the last few years, rounding out all they offer. There’s now a KONI option for everyone, whether a daily computer or a track toy. You must choose the best damper for your application, so take a glance at what they have to offer below.
Dampers For Everyone: From Street To Track
STR.T
A relative newcomer to the KONI portfolio, the STR.T—pronounced “street”—is the company’s goldilocks option for any sporty daily commuter. The damping profile is similar to the OE but not identical, with these being set up for a sportier balance. KONI says they’re compatible with the vehicle's original springs or street performance lowering springs, and reviews on forums and in owners groups echo that. They’ve been a welcome option since their debut in 2007 and are suitable for almost anything on the road. If you fit these as a replacement or an upgrade, you’ll benefit all the same.
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Sport
While KONI’s most connected color is orange, their yellow Sport damper has been the go-to option for adjustable performance on a budget. Each yellow Sport damper is tuned to a specific range for the chassis it’s designed for, giving most users the option to adjust how firm its compression settings are. However, there are double-adjustable Sport shocks for limited applications. It’s incredibly rare to find another adjustable damper, even from the other big-name aftermarket suppliers; this is your only option in most cases.
That’s certainly not to say anything of its quality, though. It’s been the choice of grassroots budget racers and anyone looking for high-quality performance damping on the street for several decades. They have reduced travel over the OE piece they replace, so they’ll pair wonderfully with any sport lowering spring. The adjustment will allow the user to tune the damper to the spring for maximum benefit. Many use coil-over spring sleeves to build a height and pre-load adjustable package on a budget.
If you’re looking at lots of spirited driving, autocross, and some light track days, all from a streetable car, these will deliver the damping you need.
Special Active
This is by far the most interesting damper in KONI’s lineup.
The problem with suspension tuning is that there isn’t one setting that works for both sporty and comfort-oriented characteristics. A happy medium does not often excel in both areas and is a mediocre middle ground. Technology has found ways around that with ‘active’ suspension controlled by computers, a relatively common option among today’s sports cars. However, KONI has gone after the issue with a more mechanical solution, which they call Frequency Selective Damping.
Although KONI labels their dampers fitted with FSD as ACTIVE, they aren’t really ‘active’ in how we think about it. Using only the components within the shim stack, they’ve designed a solution that adjusts itself based on the piston’s movements. High frequency hits, like the sharp and quick bumps in the road, travel with little resistance, maximizing absorption without transferring it through the chassis. The lower frequency movements, like body roll or weight transfers under acceleration and braking, are met with higher resistance for a sporty and firm ride.
KONI licenses this tech out to other damper manufacturers, and it's been used in the OE for two decades since it debuted on the early Lamborghini Gallardo. European vehicle owners can find this technology branded as the Special ACTIVE in the aftermarket, direct from KONI. It’s a more sophisticated replacement for standard shocks and not necessarily for outright handling performance. As such, they’re at their best with OE springs.
Classic
While current KONI products are less prevalent in the OE under the Dutch name, that wasn’t always the case. Through the eighties, KONI was an OE supplier for Porsche, VW, and others on various models. Many of those older models can benefit from the Sport damper, but anyone looking to restore the original vintage feel of their classic has the Classic line to pull from. Offered in black or the classic KONI orange, these are tailor-made to suit softer and less-demanding vintage suspensions. Damping is set appropriately to the requirements of the chassis and street driving.
GTS (Coilovers)
Most recently, KONI jumped into the market with their GTS line of coilover systems. Coliovers have long been the trendy option for lowering a vehicle or preparing it for track duty, but the Dutch suspension supplier didn’t go after the segment until 2018. While still not as comprehensive in coverage as their Sport damper, the GTS coilovers are available for a handful of models.
Each GTS application features the damping adjustment from the KONI Sport with linear lowering springs and height-adjustable spring perches in a single kit for maximum control from the road to the track. Ride height drop depends on the application and the perch height, but it should range between one and four inches. Spring rates are set for a regular application, but KONI is well-experienced with grassroots racers and will tailor the spring rates to your request if you contact them directly. Few companies offer that customization, and fewer still have the engineering expertise of over seventy years competing in top-level motorsport.
No matter what you drive, there's a KONI option for you; you just need to find the right one. If you need any help, contact KONI or one of FCP Euro's customer associates, who can point you in the right direction and have your car or SUV riding better than ever in no time. While you wait for your parts, feel free to check out more of the DIY Blog and explore both of FCP Euro's YouTube channels.
