Try the best.

AC Speedtech are able to offer complete handling packages for our customer’s vehicles, concentrating on improving the vehicle’s handling attributes in given environments.

We concentrate on offering only high quality, race proven, compliant parts that meet and exceed thorough supplier testing, whether it be for corrosion resistance, to longevity in demanding racing conditions.

The handling of the vehicle is one of the key areas we concentrate on improving, and for the reason, we only chose products and suppliers that have experience with in terms of results.

Our preferred suspension supplier is KW Suspensions, of which we are an approved factory installer and partner.

Having spent a number of years working alongside KW, including being invited to visit their Development Centre in Fichtenberg, Germany, we thoroughly understand the entire KW Suspension Range, and can support our customers throughout the entire process from initial damper/spring settings for given applications, installation, setup and aftercare.

We recommend the following suspension systems from KW Suspensions;

KW Suspension has emerged as one of the leading manufacturers of sport suspension systems. Founded in 1991, KW Suspension now deliver the largest application line-up of coilovers in the market today.

Continuous improvements and global innovations such as the ‘inox-line’ stainless steel technology used in their coilover kits provide impressive testimony to the technical abilities of KW Automotive. Motorsport is the source of countless innovations, and a source well tapped by KW Suspensions.

For over 10 years, the founders and owners of KW Automotive have been active in motorsport. The experiences collected over the years are constantly being integrated into new developments – for the track and road. This involvement has grown throughout the years in many different series’ and in 1999, they even fielded its own racing team in the DTC (German Touring Cars).

Today, KW Suspension are one of the leaders of innovative coil overs, sport suspension solutions and motorsport performance applications. Specialising in high performance suspension, KW Suspension has become a leading company in innovation, quality, functionality and unrivalled customer service.

Born on the track, raised for the street.

KW Variant 3 – “InOx Line”

Unlimited individuality for performance & comfort.
Damping forces can be adjustment separately in rebound & compression.

19,90$

per month

Unlimited individuality for performance & comfort.

Damping forces can be adjustment separately in rebound & compression.
Our engineers have developed a sporty yet harmonious basic setup, as with any KW coilover kit. To be able to guarantee the perfect suspension setup we test on our KW 7-post rig, as well as extensive driving tests on country roads, motorways and even on the Nürburgring Nordschleife. For years, the KW coilover kit Variant 3 “inox-line” is one of the top aftermarket products and is a benchmark for coilovers. It convinces sports car drivers, tuner, large-and small series manufacturer such as Alpina, MTM, Manthey, Oettinger and many more leading companies in the international automotive industry with its damping characteristics, quality finish and durability.

Advanced technology from motor sport

With the KW coilovers Variant 3 “inox-line” you will get much more than just a sporty lowering and excellent driving behaviour on all roads. It is based on our long experience as a suspension manufacturer and supplier for international motor sport, such as the touring car series ADAC GT Masters, FIA GT1, FIA GT3, International GT Open, WTC, VLN and the legendary ADAC Zurich 24h-race Nürburgring.

Similar to our racing coilovers from the KW Competition program, the KW coilovers Variant 3 “inox-line” can be adjusted independently in compression and rebound damping. This individual adjustment possibility is much appreciated by sports car manufacturers, tuners and drivers worldwide.

The perfect suspension setup for more driving pleasure

If you have already made your first performance modifications to your vehicle our KW coilovers Variant 3 will compliment your upgrades. The patented KW-valve technology for separate adjustment of rebound and compression damping allows you to individually setup your suspension.The adjustable KW bottom valve adjusts the low-speed range of the compression level in twelve clicks.

You don’t need any adjusting tools because of the patented compression adjuster at the lower end of the stainless steel housing. The adjustable compression damping with its twelve exact clicks allows you to manually influence body roll, without having to change the spring rate which optimally matches the rebound.

With the individually adjustable rebound setup of the KW coilover Variant 3 “inox-line”, you can directly influence the handling and comfort with its precise click adjustment. Depending on the vehicle type, the rebound valves of the KW twin-tube dampers on the upper end of the piston rod will be adjusted via an integrated adjustment wheel or a twist-adjustment wheel which is included in the delivery content.

By increasing the rebound force via the adjustment wheel body movements are reduced. You will have more stability during high speed cornering. If you change for example the wheel / tire combination (approved by the car manufacturer) to larger wheels, then with a KW coilover Variant 3 “inox-line” you will be able to adjust the car’s handling perfectly.

High quality, individual and durable

The KW coilover Variant 3 “inox-line” kit and every single damper are subject to extensive quality tests during production to meet the high standards of our KW quality management. This is the only way we can meet our expectations to give up to five years warranty on our KW coilover Variant 3 “inox-line” when installed at one of our KW specialist dealer. KW coilover struts made of stainless steel are 100% rust-free and an unlimited life time.

Therefore the operation of the continuous lowering via the dirt-resistant KW trapezoid thread and the KW composite collar is also not affected after years. By the individual lowering with its continuous adjustment range, you can emphasize the sportiness of your vehicle visually. A feature that is very popular in the performance-oriented tuning scene.
• Rebound and compression damping adjustable damper technology
• Stainless steel technology “inox-line”
• Individual, continuous lowering
• tested adjustment range
• High quality components for a long life
• Complete documentation for an easy handling
• Adjustable rebound damping with 16 exact clicks
• Adjustable compression damping with 12 exact clicks
• Unique, independent from each other working damping force adjustment

Setup: The individual adjustable rebound- & compression damping of the KW Variant 3 “inox-line”

The KW coilover kit Variant 3 “inox-line” is the perfect accessory for performance-oriented drivers and tuning enthusiasts who put a great demand on their suspension. The separately rebound and compression damping adjustable dampers with their “well-thought-through” click adjustment allow a perfect setup. So it is easy to influence the steering behaviour, directional stability, tire grip and handling characteristics when driving on the limit.

No other coilover kit for road use offers you such a large range in damper adjustment. With the KW dampers adjustable in rebound with 16 clicks and compression with 12 clicks, its quick and easy to achieve a personal setup.

A KW coilover with its 100 percent corrosion resistant stainless steel strut housings can be height adjusted at all times. With our dirt resistant trapezoid thread and durable composite height adjuster collar adjustment is possible after many years of driving.

The polyamid composite collar:

In contrast to anodized adjustable spring seats made of aluminum, at KW we use a durable polyamid composite collar with a stainless steel insert. So even with the influence from dirt particles, such as brake dust or sand grains, the polyamide composite collar will not be damaged.

KW tool kit included

Each KW coilover kit comes with a practical KW tool kit, consisting of:

– TÜV-certificate
– Installation- and adjustment instructions
– Spanner wrench

View Variant 3 Catalogue

View Application and Pricing List here

KW Competition Kits

As fitted to the world’s quickest race cars in
VLN, 24h Nürburgring, GT Asia, WTCC, FIA GT1, ADAC Procar

49,00$

per month

KW Competition coilovers are the number one choice of many top international race teams. The excellent combination of performance/price ratio and long standing history of successful victories and championships claimed by KW racing technology has been a su

The versatile characteristics of the KW Competition suspension kits accommodate a broad range of different pavement surfaces, radius of turns and elevation changes. The KW Competition kit has been the main-stay of many top teams racing at the most demanding race track in the world – Nurburgring Nordschleife, aka the “Green Hell”.
Whether in the VLN, 24h Nürburgring, GT Asia, WTCC, FIA GT1, ADAC Procar – motorsports team every where teams rely on the suspension know-how of KW Competition.
KW’s renown test center provides the ability for our competition department to progress in specific areas of vehicle suspension setup in a confidential environment. The hydraulic 7-post rig can be activated in various modes such as 7 post and 4 post sweep

Depending on the type of race car, between 50 to 100 measurements can be recorded each day.
There is no wear and tear on the vehicles as compared to the race track environments and racetrack fees, testing times are reduced significantly.
The KW test center is open to all teams regardless of their brand of suspension on their vehicle.

KW 2-way competition racing suspension

KW Competition 2 way suspension kits feature independent rebound and compression damping. They can be constructed out of galvanized steel housings where structural strength is a concern or lightweight aluminum, where weights savings is advantageous. The following damper versions are available.

• Twin tube technology with 15, 18 or 22 mm rod diameter
• including surge tank for an position independent installation
• including adjustable compression valve technology in the reservoir for additional damper stroke
• Mono-tube upside down damper cartridge with 40 mm standard bearing

The rebound adjustments are made at the end of the piston rod end and provide 16 precise clicks of adjustment. The compression adjustment is located at the bottom of the damper or on the reservoir and provides 12 exact clicks of adjustments. IN addition to a wide range of suspension systems. Custom orders can be accommodated for nearly every type of race car.

KW 3-way Competition racing suspension

The KW competition 3-way racing coilovers provides 3 independent features of adjustment. Low-speed rebound, high and low-speed compression adjustment. The unique valve technology of the 3-way damper system differs from conventional mono-tube damper shim package valve technology. This design also provides a maintenance-friendly service of the damper system.

Versatile in its design, the damper system performance remains consistent even through a high temperature environment and has been proven to be reliable. The Competition 3-way systems are designed on the mono–tube damper principle with an adjustable reservoir. Rebound adjustments are made through an adjustable needle on pre-adjustable valves.
Depending on which version (18 or 22 clicks), the compression level in the low-speed and high-speed range can be adjusted. The standard compression level is controlled by a pre-configurable blow-off valve. The 3-way Competition kits are constructed of high-strength aluminum. McPherson front struts are constructed as inverted dampers with 40mm and 45mm/55mm (for rally use) guiding tube diameters. Steel construction is an option for endurance racing applications.

The McPherson Technology

McPherson struts utilizing a 40mm damper cartridge provide a highly stable and laterally flex resistance construction. The inverted damper is guided in an outer tube housing via a standard bearing. Special linear bearings are optional and reduce any possibility of rod stiction. This is an ideal setup when racing with wide and soft compound race tires.
As wheel-guiding struts are exposed to maximum loads during cornering and braking, the benefit of KW linear guided bearings grow at increasing lateral force of up to 87% less friction compared to plain bearings.

Advantages of linear bearing:

• 40 mm inverted cartridge
• high stability and camber stiffness
• up to 87% less friction under lateral force

View Competition Catalogue

Application and Pricing

FAQ.

Initial Installation

Quotes will include typical installation labour cost (we know how long it takes)
Experience setting up and installing means you pay less!
All setup options discussed prior to ordering
Full 4 Wheel Geometry Report (Print Out and Emailed to you)

Warranty

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Adjustment

For small adjustments, we will explain and show you how to make typical adjustments yourself
We don’t charge for tweaks! Drive the car and give us some feedback! Need something tweaked, we will sort it!
Your initial spring settings perfect for Silverstone, but too stiff for Cadwell for example? We can swap out your springs and dial in your dampers to suit different circuits. All part of our fantastic service here at ACSpeedtech.

Further Improvements

Need advice on what’s next? We will walk you through all your options including handling part upgrades that will compliment your damper upgrades
What diameter Roll bar? Which bush? We can provide you will all of the options, costs and benefits
We will only recommend you on the options that we know you will benefit from! We don’t sell needless braces/bars/links!