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Description
KW Variant 4 (V4) Coilover Set incl. Top Mounts - F80 M3, F82 M4For many years, the KW automotive GmbH is the epitome for premium products in car tuning and automobile refinement. KW offers its customers the largest suspension programme world wide. The entire assortment from springs over sports suspensions to coilover suspensions inox line in four damping versions such a variety of products is unsurpassed on the market. Moreover, KW automotive GmbH develops racing solutions for national and international motor
For many years, the KW automotive GmbH is the epitome for premium products in car tuning and automobile refinement. KW offers its customers the largest suspension programme world-wide. The entire assortment – from springs over sports suspensions to coilover suspensions “inox line” in four damping versions – such a variety of products is unsurpassed on the market. Moreover, KW automotive GmbH develops racing solutions for national and international motor sports. The racing programme KW competition is successfully used by numerous racing teams on many race tracks around the world.
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PRODUCT INFORMATION
Adjustable front lowering 15-40 mm
Adjustable rear lowering 15-40 mm
Axle load front -990kg
Axle load rear -1,170kg
Damping adjustment High speed compression (14 click), low speed compression (6 click) & rebound (16 click) adjustment
Suitable for F80 M3 Sedan and F82 M4 Coupe with or without Electronic Damper Control (EDC) suspension. The KW Cancellation kit for electronic damping is provided in coilover set for cars fitted with factory EDC. Not for F83 M4 Convertible.
Note: Models built before 12/2014 were fitted with a 3-bolt design front top mount as standard and models after 01/2015 were fitted with a 5-bolt design top mount. Please check which version you require before placing your order as returns will not be possible.
All photos shown are for demonstration purposes only and may not reflect the actual specifications of this kit. Please contact us if you have any questions.
About KW Variant 4 (V4) CoiloversHigh-performance racing technology for daily road use with KW 3-way racing damper adjustment technology
With the new KW coilover kit Variant 4 with its coilover struts made of stainless steel, you will give your super sports car the necessary reserves to further increase the driving dynamics. The three way adjustable high-performance shock absorbers with their independent adjustment of the rebound and low speed as well as high speed compression damping are based on the successful racing technology of the multiple overall winners of the ADAC Zurich 24h Nürburgring and depending on the vehicle-specific design, they also feature aluminum top mounts. The new KW coilover kit Variant 4 is developed exclusively for selected high-performance vehicles, which can be driven more safely at the driving dynamics limit with our KW suspension technology.
- 3-way adjustable high-performance dampers with coilover struts made of stainless steel
- Rebound damping with 16 exact clicks + (tighter) / - (more comfortable)
- Low speed damping with 6 exact clicks + (tighter) / - (more comfortable)
- High speed damping with 14 exact clicks + (tighter) / - (more comfortable)
- Two basic setups with comfort adjustment and performance setup
- Depending on the car, the aluminium top mounts are an integral part of the delivery
Setup – factory-set pre-configured damper setup with separately 3-way damper adjustment
The three-way adjustable high-performance dampers with the independent setting of the rebound stage by the “TVR-A”-technology as well as the low-speed and high-speed compression stage damping by the “TVCLH-A”-technology are based on the successful racing technology of the multiple overall winner of the ADAC Zurich 24h Nürburgring race and are depending on the vehicle-specific version, braced with aluminum top mounts. The new KW coilovers Variant 4 are exclusively developed for selected high-performance-vehicles, which due to the sophisticated KW suspension technology can benefit from safer driving at the limits of their driving dynamics.
TVR-A rebound stage damping (Twin Valve Rebound – Adjustable)
The two-step, patented “TVR-A” technology enables the small volume to flow through an adjustable, conical low-speed bypass in the case of slow damper speeds, while in the case of higher piston speeds, the main rebound stage valve opens for the large volume flows. This provides a big improvement in terms of ride comfort without influencing the high-speed in the safety-relevant range. There are 16 precise clicks available for individual settings, so you can choose between more comfort or more body control.
TVCLH-A compression stage damping (Twin Valve Compression Low Highspeed – Adjustable)
With 6 precise clicks in low-speed and 14 precise clicks in high-speed range of the compression stage damping, the cross sections in the valves are decreased or increased, in order to achieve either more or less compression stage damping. The “TVCLH-A”-technology has a blow-off characteristic with large cross-sections which allows high low-speed forces for an optimum bracing of the vehicle body without raising the body in the case of wheel-induced high damper speeds (driving over curbs). The separate low and high-speed setting is always supplied with an additional rebound setting (“TVR-A”-technology) for an in dependent 3-way damper setting.Models
- 3 Series / F80 M3 (2014-2019) / M3
- 3 Series / F80 M3 (2014-2019) / M3 Competition
- 3 Series / F80 M3 (2014-2019) / M3 CS
- 4 Series / F82 / F83 (2014-2019) / M4
- 4 Series / F82 / F83 (2014-2019) / M4 Competition
- 4 Series / F82 / F83 (2014-2019) / M4 CS
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.5 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Tried as a last resort... It worked!
Color: Blue, Number of Items: 1
My 3.0 MerCruiser stern drive was hard starting and would not hold at idle and ran really rough under load. I put 2 cans of S*Foam Marine through the tank and replaced the fuel filter and the spark plugs. With only a slight improvement I decided to bring it to my dealer. They replaced the distributer cap, rotor and plug wires and sent me on my way. The idle was good, but under load (headway speed) it ran really rough. Brought it back and they swapped out the carburetor and lake tested it. Back at home it ran great for a one-hour ride. A week later I tried to start it and the idle was bad again (engine shaking, erratic RPM). Almost dragged it back to the dealer but thought I would try this first. Per instructions I added this to about 15 gallons already in the boat and then topped it off with 5 gallons of fresh gas. Let it idle at about 1500 RPMs for 15 minutes and WOW, it's purring like a kitten. Next time, this will be my first resort!
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Reviewed in the United States on August 6, 2024
★★★★★ 5
It works!
Size: 16 Fl Oz (Pack of 1), Style: Individual
A short story long---LOL---My zero turn started acting quirky-it would not run at full power and would begin to stall when put under a full load - like trying to mow some taller or thicker grass- never did stall since I would immediately kill the mower but obviously it was not right. I checked and changed the fuel filters-this one has 2 . One in the pick up line in the tank and one is inline just before the fuel pump unit. No help! So, before I dropped the big bucks to have the local farm dealer come and pick it up (at $75 per pickup and return) plus h=whatever shop charges that would result I thought "What the heck, lets give this stuff a try" I gambled $6 . I put in 5 ounces for the 5 gallons tank, and filled it with the gas I had on hand- should have been relatively fresh gas -no more than 2 weeks since pumped . Well, whatever the cause of the issue within about 15 to 30 minutes of low speed running- mostly at idle - the engine seemed to be idling smoothly as opposed to before where it surged but never died, I gave it a try at mowing. YEA!!!! full power and no bogging down - I finished mowing the yard and a part of the pasture (not yet grown up much so it is not requiring the rotary cutter YET) My only guess is perhaps a batch of either old gas or some water in the gas can or mower tank but whatever the cause it fixed it --and all for $6.
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Reviewed in the United States on April 12, 2025
★★★★★ 5
Convenient to order from Amazon
Size: 16 Fl Oz (Pack of 1), Style: Individual
Works as expected.
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Reviewed in the United States on January 25, 2026
★★★★★ 4
Good product
Size: 16 Fl Oz (Pack of 1), Style: Individual
Works well for my lawnmower. It's running better after first time using.
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Reviewed in the United States on July 13, 2025
★★★★★ 5
Fuel stabilizer
Size: 16 Fl Oz (Pack of 1), Style: Individual
Great additive
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Reviewed in the United States on January 21, 2026