SKU: 64623803045

ST Suspension XA Height, Rebound Adjustable Coilover Kit for Audi A5 (B9) Sportback Quattro(182100AS)

Sale price$629.55 Regular price$699.50
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

ST Suspension XA Height, Rebound Adjustable Coilover Kit for Audi A5 (B9) Sportback Quattro(182100AS)The ST XA coilover kit allows you to adjust the look of your vehicle with the stepless lowering. We manufacture the adjustable spring perch from a resistant and friction optimized polyamide composite material with stainless steel insert. Thanks to the composite material, in contrast to the anodized aluminium spring perches, possible oxidation is prevented. So you can permanently use the height adjustment of your ST XA coilovers. With our in 16 clicks

The ST XA coilover kit allows you to adjust the look of your vehicle with the stepless lowering. We manufacture the adjustable spring perch from a resistant and friction-optimized polyamide composite material with stainless steel insert. Thanks to the composite material, in contrast to the anodized aluminium spring perches, possible oxidation is prevented. So you can permanently use the height adjustment of your ST XA coilovers. With our in 16 clicks adjustable rebound damping, you can further adapt the perfectly to your car pre-set damper setup to your driving profile with just a few manual steps. The adjustable rebound damping gives you the possibility to adapt the ST coilover kit either more comfortable or sportier.

The galvanized coilover struts are, as usual in the standard equipment, made of galvanized steel and our additional sealing ensures an optimized corrosion protection. We protect the inner values of your high-quality ST coilover suspension including its KW dampers with a low-friction and pressure-resistant damper housing, the use of a hard chromed piston rod and a mono block guiding- and sealing package.

Do you want to get more than just a lowering of your car? Then our ST XA coilover kit is just the right suspension for you! Thanks to the adjustable KW dampers, you can always further refine our recommended setting for your vehicle, to set your car even sportier or more comfortable. In any way, your vehicle gets a much better road holding with our ST XA coilover kit and it looks great with the continuously lowering.

Features:

  • Direct Steering Behavior
  • Improved Handling
  • Increased Driving Comfort
  • Composite Spring Perch
  • Two Piece Racing Spring System
  • Dust Protection & Weather Resistant

ADVANTAGES OF A ST COILOVER SPRING STRUT:

  • ST Suspensions - Spring Strut Construction
  • Excellent all around performance, provides a balance between performance and comfort for everyday use
  • High-quality components for long durability
  • Use of twin-tube technology, independent reactions from damping inputs minimized chassis vibrations and increase driving dynamics
  • Coilovers come with all necessary components, vehicle-specific certificate and insallation instructions

Functional principle of twin tube shock absorbers
With a Twin-Tube shock absorber, the piston works inside of an inner Tube. The space between the inner tube and the casing is used as an equalization chamber. Changes in volume due position of the piston rod change the oil level in the equalization chamber between the outer casing and inner Tube.

Compression phase:
When the car swings downwards in the direction to the road, the piston rod is moved downwards.The oil displaced by the piston rod is pressed into the equalization chamber between the Tubes via specially designed orifices in the compression valve at the lower end of the inner Tube. The resistance that is created through this valve creates the actual compression forces. Oil underneath the piston also flows upwards through the piston check valve with low resistance which also influences the damper characteristics.

Rebound phase:
When the car swings upwards, away from the road, the shock absorber is extended. The piston rod is extending outward from the housing. The rebound phase valve at the lower Tube resists the oil that flows downwards through the holes in the space above the Tube. Therefore the upward motion is slowed down. When the piston rod is pulled out of the case, its volume is balanced out by the oil that flows from the equalization chamber back into the inner tube through the compression check valve.



Functional principle of mono tube shock absorbers
With a one-piston shock absorber, the piston works directly in the damping case. Both, traction and also compression phase valve are integrated into the piston at the end of the piston rod. Depending on the velocity with which the shock absorber is compressed or extended, the forces rise. A characteristic is the separating piston that separates the oil from the gas space which is under strong pressure. The gas space balances the oil expansion with temperature differences and volume changes while the piston rod retracts. The separating piston thereby moves upwards and downwards. The gas pressure of 25-30 bar in the separating space is necessary in order to support the damping forces in direction of the pressure direction.

Compression phase:
When the car swings downwards in the direction to the road, the piston rod is moved downwards. The compression phase valve on the top of the valve resists the oil that streams upwards through holes. Therefore, the downward movement is slowed down. The separating piston is thereby lowered by the same degree as the piston retreats downwards. The gas pressure underneath the separating piston thereby prevents the oils from foaming above the piston.

Rebound phase:
When the car swings upwards, away from the road, the shock absorber is extended. Thereby, the piston rod is moving out of the damping case. The rebound phase valve at the lower piston resists the oil that flows downwards through the holes in the space above the piston. Therefore the upward motion is slowed down. The separating piston is thereby lifted upwards by the same degree as the piston extends.

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: 64623803045

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tb626
Port Orchard, US
★★★★★ 5
Excellent monitor!!! Be aware that it does not have internal speakers.
Size: 24 inch 100Hz
Beautiful image. This monitor is excellent and I am very happy with it. However, you should be aware that it does not have any internal speakers and it does not have any audio input. It does have audio output for external speakers or headphones. For me, this was not a problem since I use a USB external speaker for better clarity. The lack of internal speakers was a surprise to me, but I suppose since the lack of speakers mentioned in the product description should have tipped me off.
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Reviewed in the United States on April 29, 2026
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Cindi Sullivan
Birmingham, US
★★★★★ 5
Good quality product
Size: 24 inch 100Hz
Happy with this purchase, easy to set up, I mostly use for my camera system, but flip around from TV and streaming! Love the size.
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Reviewed in the United States on May 11, 2026
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Rochelle Woods
Belleville, US
★★★★★ 4
Great Buy
Size: 24 inch 100Hz
I needed an monitor for my work office and I am glad I got it. It suits the job. The screen is nice and bright, clear, and runs smooth. It is easy to set up but I wish it could swivel around and had some height too it. Overall, It was a good buy for the 24 inch screen. I would definitely buy it again. The sound quality is great,no issues so far with the monitor at all.
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Reviewed in the United States on May 10, 2026
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Dalimom
Draper, US
★★★★★ 5
Great Value!
Size: 24 inch 100Hz
Huge upgrade from what I had before. fast, nice display. I'm happy! Thanks!
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Reviewed in the United States on June 4, 2026
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PittieMom
Natrona Heights, US
★★★★★ 5
Works as it should
Size: 24 inch 100Hz
I started a new job a few months ago and I get to work from home one day a week. They do not pay for you to set up a home office however, so I was looking for a cheap monitor for part of my set up. I came across this one and decided to try it out. I work in client service for a finance company so a lot of what I use it for is email, other conversational programs, and then our custodian software. I’m not doing anything crazy. I have it connected to a name brand laptop and it was very easy to set up with no issues. It turned right on. The picture quality is nice. Again, I’m not doing editing or anything on this so it works for what I need. It does NOT have speakers, so I do need to use the speakers on my laptop( which can be annoying), but again it’s not a deal breaker. I have been using it now for 5 months and it’s been working really well for my set up. I am thinking of getting a second monitor and I would get another of these but also I do want a speaker so I don’t know that I would get this exact version. For the price, if you are looking for something basic for normal work from home needs, this does the trick!
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Reviewed in the United States on February 17, 2026

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