SKU: 31573248784

KW Suspension Coilover Kit V3 for Audi A4 (B9) Sedan 2WD w/o EDC 50mm (352100AV)

Sale price$1585.80 Regular price$1762.00
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Description

KW Suspension Coilover Kit V3 for Audi A4 (B9) Sedan 2WD w/o EDC 50mm (352100AV)Cutting edge motorsports technology for more performance on the road. With independently adjustable compression and rebound damping the Variant 3 damper setup can be tuned to your own driving preferences or vehicle modifications such as weight, tire characteristics or additional chassis bracing. True performance optimization is only possible with this unique, patented system. For example, the compression damping force can be increased to optimize grip

Cutting-edge motorsports technology for more performance on the road. With independently adjustable compression and rebound damping the Variant 3 damper setup can be tuned to your own driving preferences or vehicle modifications such as weight, tire characteristics or additional chassis bracing. True performance optimization is only possible with this unique, patented system. For example, the compression damping force can be increased to optimize grip from the tires, or improve cornering behavior and reduce squat without influencing the rebound damping characteristics that are optimally tuned to the spring rate.

The KW Variant 3 "inox-line" coilover kit is the ideal tool for performance-oriented drivers and experienced tuning enthusiasts who place a strong emphasis on the overall performance of their suspension. The Variant 3 features patented TVR-A and TVC-A technology that provides separately adjustable rebound and compression damping. The extensive adjustment range of the independently configurable rebound and compression make it easy to directly influence the steering behavior, directional stability, grip and handling characteristics for confident and repeatable results at the limit of driving dynamics.

With KW Variant 3 coilovers you can achieve maximum lowering within an approved lowering range that ensures a proper functioning suspension with adequate travel after your car is lowered. Even after years of use you can easily adjust the ride height thanks to the dirt resistant trapezoid thread and composite adjustment collar.

KW Variant 3 Coilovers Feature:

  • Customized Suspension Lowering. KW coilover suspensions, KW height adjustable springs, and KW DLC Air Suspensions allow the suspension to be lowered within the vehicle's technical limitations. For example, our Street Comfort products allow for a customized ride height setting with mild suspension lowering from 10 - 50 mm, while the Street Performance products allow the maximum technically possible suspension lowering range from 45 - 85 mm, depending on the vehicle. This means that the suspension can be lowered to suit the personal needs of the user and, depending on the product category, a setting ranging from Comfort to Performance can be chosen.
  • Composite Spring Seat. The KW coilover spring seat, also known as a spring perch, is constructed with a wear-resistant, friction-optimized polyamide composite material encompassing a stainless steel insert. In contrast to the anodized aluminum adjustable spring seats, the polyamide composite material prevents any possible oxidation while the stainless steel insert maximizes strength.
  • Trapezoidal Threads. In combination with the Inox-Line stainless steel coilover struts, this guarantees the long-term functionality of ride height adjustability. In comparison to common coilovers, KW uses a friction-optimized trapezoidal thread which is less sensitive to dirt and requires less force to adjust. Its large cross-section also provides a higher load-bearing capacity.
  • INOX-Line. KW's coilover suspension struts are manufactured from high-quality stainless steel that is rust-proof. In contrast to other solutions, Inox-Line coatings will not wear off while adjusting the suspension making KW coilover struts 100 percent corrosion resistant with an unlimited lifespan. Lowering the suspension using the trapezoidal thread in combination with the polyamide composite spring seat guarantees long term usability. Even after years the ride height adjustability is not affected.
  • Rebound Adjustment. The rebound stage damping is precisely tuned to the respective vehicle at our in-house drive dynamics test facility, delivered in the middle of the range out of the box. Individual customization can be achieved in 16 precise clicks, allowing you to choose between more comfort or more body control. The two-stage patented TVR-A technology allows the oil to flow through an adjustable, conical low-speed valve during slow piston speeds, while during higher piston speeds the main rebound stage valve opens to handle the flow of large volumes of oil. This provides major improvements in ride comfort without influencing the high-speed.
  • External Reservoir. KW Twin-Tube Technology Knows No Limits. The KW reservoirs provide additional oil and cooling capacity for particularly high force systems. The reservoir, which is filled with low gas pressure, can be fitted anywhere and accommodate the adjustable compression valve to provide more working space inside the damper.
  • TVR-A Technology. The two-stage, patented TVR-A (Twin Valve Rebound - Adjustable) technology enables a small volume of oil to flow through an adjustable, conically shaped, low-speed bypass during low damper speeds, while in the case of higher damper speeds, the main rebound stage valve opens allowing a larger volumn of oil to flow. This provides a big improvement in terms of ride comfort without influencing the safety-relevant high-speed range.
  • TCV-A Technology. The patented compression stage valve with TVC-A technology features two separate spring pre-tensioned valves for low and high volume flows. The compression stage which is tuned to the particular vehicle type on our 7-post rig is supplied with a mid-range factory setting. With 12 precise clicks the adjustable compression stage valve can increase or decrease the cross section in the low-speed valve to achieve more or less compression stage damping. At the same time, in the case of sud-den high piston speeds, the spring pre-tensioned needle valve and the spring pre-tensioned main valve open to their maximum cross section, utilizing the blow-off feature to prevent undesired progressive power surges in the high-speed range. This allows for improved bracing of the vehicle body while simultaneously offering more comfort than with con-ventional valve technology in the case of high wheel acccelleration. The compression stage damper setting is always supplied in combination with a separate rebound stage setting, as only one independent 2-way damper setting allows for true performance optimization.
  • KW 7-Post Driving Dynamic Test. Used regularly by automobile manufacturers and international race teams, KW's in-house 7-post drive dynamics test facility is utilized to optimally tune KW coilover suspensions according to the design and target group. The 7-post drive dynamics test facility is essential for fine tuning along with actual on-road evaluation on public roads and race tracks. In objective laboratory conditions, which can be reproduced at any time, we work everyday to give our customers the internationally-esteemed KW driving experience.
  • Technical Component Report. The technical component report is always included in the package and outlines the guidelines for lowering the suspension of the respective vehicle. The technical component report ensures the vehicle remains usable when set within the guidelines provided in the installation instructions, allowing for an inspection and subsequent entry into the vehicle documents to be carried out without any problems. The technical component report also includes precise vehicle classification, requirements, and tips for safe fitting.These reports are required for road legal approval in many countries, check local laws.

KW is the Benchmark for coilovers. KW Variant 3 "inox-line" coilover rewards the sporty driver with its harmonious pre-configured setup. For each vehicle our engineers develop a specific damper setup and spring rate to increase the driving pleasure with an optimal balance of sportiness and practicality. As with all KW coilovers, the engineers at KW develop the vehicle-specific KW damper tuning and spring rates with comprehensive testing on the Nurburgring Nordschleife and in the KW 7-post chassis dynamics test center. You are not buying a mass produced, generic coilover kit, a KW coilover has been developed specifically for your particular vehicle. As a manufacturer, KW uses only its own resources, high quality components and the damper technology that has all developed in-house. With the KW Variant 3 "inox-line" coilovers, body roll will be reduced during compression giving you the benefit of a more genuine and direct sporty handling while driving.

  • Specifically Tuned Package Per Application
  • Rebound Valve Assembly
  • KW Coilover Struts are Made of Stainless Steel
  • Vehicle Specific Chasis Development
  • In House Production in Fichtenberg, Germany
  • Each KW Coilover Development Undergoes Endurance Testing

Height adjustable front and rear axles (front axle threaded strut housings, rear axle adjustable springs + dampers). For cars which have electronic dampers, make sure they are shut down. Specific electronical damper shut-downs are available from KW. Please check our accessories list. Valving is adjusted by adjustment knobs, rebound is only adjustable if the top of the piston rod is accessible. This will depend on the design of the vehicle.. Only for cars with damper diameter 50mm (not 48,5mm) on the front axle; measured at the damper body just below the OE spring seat.

 

 

 

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31573248784

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4.4 ★★★★★
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pdb
Louisville, US
★★★★★ 4
Overall great product, especially on solid colours.
I bought a 33 year old boat that is mostly white gelcoat. Some of the white had yellowed in areas and there were bright spots where I removed stickers and hull numbers. The boat also has red and blue metal flake that was quite faded and gritty. The flake is large particles of metal or paint or whatever, not fine little glitter bits like they do now. I called Poli Glow Canada and the guy told me to use 600 grit wet sandpaper to smooth out the metal flake and then wash with the Poli Prep. The white came up pretty clean, but I had to use the sandpaper on some areas to take off the yellow. The Poli Glow went on really easily and quickly. When you are doing it, keep an eye on the the edges of the applicator. If the liquid starts to harden, wash the edges in warm water to get them soft again. I didn't do this and have some small bumps kind of like fuzz off a paint roller, which I guess is bits of dried liquid that came off the applicator. You will also get streaks if the edges are dry, but the next coat fixes that right away. Check after each coat to ensure it is smooth. I'm pretty sure a quick pass with the sandpaper would have removed the bumps, but by the time I was finished, I didn't want to mess with it. In the end, the white turned out looking great. The flake is definitely better than when I bought it, but it only shines at about 50% of original (compared to the flake on the transom which was in really good condition) and I was expecting better based on the before and after shots on their site. There are also some streaks in the flake from certain angles where I guess my sanding pressure wasn't consistent.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 26, 2013
T
Verified Purchase
The skinny...
Boise, US
★★★★★ 5
I am hard to please...especially expensive products...
K...So I have this 26 ft. sailboat. I have all the professional equipment you can use to restore fiberglass shine. However, a 15 year old sailboat's topside will usually have pitting that you COULD sand down and shine.. but this is a risky step as you think the gelcoat and if you go through, now you have an eyesore of an entirely different nature... My only problem with trying this was the idea that it would fade out shortly and possibly yellow. However, a bigger concern is continued breakdown of the glass surface. An over-riding concern. Wax on a surface that is pitted is usually short lasting and does shine well..good for 3 months, maybe. I bit the bullet and bought this after looking at it's competitors. BUY THE KIT, NOT JUST THE POLIGLOW. The cleaner worked better than any other I have bought. I don't know why. It just did. The scrubbing sponge is perfect for the job. I used a smaller dishwashing scrubber in tight spaces..it seriously was inadequate. This kit was made right, I'm thinking. Following the directions to apply per the bottle. I was skeptical about using a damp mit. I have done the entire cockpit area of the boat at this point with 6 coats and used maybe a half an inch of the product. And the boat looks absolutely AMAZING. Will this yellow? Will it last a year? IDK, but other reviews suggest positive experiences on both counts. Best of all, this will HALT the ongoing beating the topsides takes. (On another note, don't use this on nonskid. It's slick..just my opinion, maybe no more slick than new nonskid. But there is a really great product if you search "nonskid fiberglass surface restorer." Expensive but works.) Best description I can give you on how this will turn out is .. you know how good a surface that is aged looks when you wet it? That..but it stays. Yes, you will need 4-6 coats. But it dries very quickly and still doesn't use much product. At this performance level, the price was worth it. And I am frugal beyond belief. I would recommend that you do professionally buff any fiberglass surface with a good medium one step cutting compound and a professional buffer before you apply this to get best results. DO NOT USE THIS ON SURFACES THAT ALREADY ARE SHINY. It says so right on the kit. I also agree your smoothest outcome will come at room temp vs applying int the sun or significant heat. It dries quickly and doesn't even out as well before drying. Still, it will look great.
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Reviewed in the United States on August 8, 2016
J
Verified Purchase
Jake D.
Omaha, US
★★★★★ 5
YOU WILL LOVE IT!!!
This is the best product I’ve ever used on our boat! We have a 26-year-old Tige wakeboard boat that had heavy oxidation and water spots. In addition to a heavily faded gel coat. I spent a few hours working on it and it completely restored our boat! I got the recommendation from my father in law after he used it on his RV. The results speak for themselves. I highly recommend this product!
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Reviewed in the United States on March 21, 2026
J
Verified Purchase
JD S.
Dallas, US
★★★★★ 5
Great Product!
Does what it says. It made my 20-year-old RV look like new!
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Reviewed in the United States on May 4, 2026
J
Verified Purchase
Jason Clinton
Los Angeles, US
★★★★★ 5
Wish I Had Used This Sooner – Stop Debating and Just Buy It!
Wish I Had Used This Sooner – Stop Debating and Just Buy It! After a lot of debate, extensive research, and way too many hours spent buffing my RV with other products that never fully delivered the results I was after, I finally tried Poli Glow—and I am extremely happy I did. My only regret is not using it sooner instead of letting other people's opinions talk me out of it. The difference in how my RV looks after applying Poli Glow is genuinely impressive. The high-gloss finish it lays down on the fiberglass is deep, clean, and long-lasting in a way that the other products I tried simply could not match. The application process with the included mitt is straightforward and far less labor-intensive than traditional buffing and polishing methods, which alone makes it worth switching to. The hydrophobic properties mean water beads and rolls off beautifully, and knowing the UV protection is working to shield the fiberglass from the relentless Las Vegas sun gives real peace of mind for long-term appearance and protection. For anyone who has been going back and forth on whether to try Poli Glow or sticking with whatever you've been using—stop debating, stop listening to everyone else's opinion, and just try it. The results speak for themselves and I won't be using anything else on my RV going forward. Highest possible recommendation.
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Reviewed in the United States on April 13, 2026

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