HKS x Studie Coilovers with Error Canceller 21+ BMW G8X
SKU: 57098071885

HKS x Studie Coilovers with Error Canceller 21+ BMW G8X

Sale price$1732.50 Regular price$1925.00
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

HKS x Studie Coilovers with Error Canceller 21+ BMW G8XHKSTUDIE is a collaboration product between HKS and Studie AG. Fits 2WD & 4WD BMW M3 G80 M4 G82 Features: Balancing high speed stability and comfort for city driving The G8X generation M has electrically adjustable dampers as stock, and while they provide the stability typical characteristics of the M series at high speeds, they still are a bit stiff in daily driving, even in "COMFORT" mode. The HKSTUDIE SUSPENSION was developed based on the concept

HKSTUDIE is a collaboration product between HKS and Studie AG.
Fits 2WD & 4WD BMW M3 G80 / M4 G82


Features:

Balancing high speed stability and comfort for city driving
- The G8X generation M has electrically adjustable dampers as stock, and while they provide the stability typical characteristics of the M series at high speeds, they still are a bit stiff in daily driving, even in "COMFORT" mode. The HKSTUDIE SUSPENSION was developed based on the concept of "Balancing high speed stability and comfort for city driving".

High rigidity inverted dampers are used
- The mono-tube dampers are equipped, which enables the use of a large-diameter piston and provides high-quality and stable damping force. In addition, high rigidity inverted dampers are used for the front suspension, as the strut type suspension system is subject to heavy bending loads during acceleration, deceleration and cornering. This leads to excellent handling.

Fully-threaded shock body
- Fully-threaded shock body is adopted for both front and rear, allowing adjustment to the desired ride height without affecting ride comfort by changing the amount of damper retraction stroke or spring pre-load. Wheel gap between the front tire and fender is noticeably big with the stock ride height, so we set the front end slightly lower relative to the rear to obtain a more stylish appearance and improve high-speed driving stability.

The 30-level damping force adjustment
- The 30-level damping force adjustment allows the driver to set the preferred damping force to suit various driving conditions, from city driving to the race track. You will experience the evolved "The Ultimate Driving Machine" by having balanced performance of smooth ride on the street and a steady driving feel at high speed, perfect for the M series.

Features the camber-adjustable top hat
- The front unit features the camber-adjustable spherical-bearing top hats for sharp handling. CNC machined aluminum top hats are adopted for the rear unit.

3-year/60,000 km product warranty
- By manufacturing in-house at our factory in Japan and conducting thorough quality control, we are able to offer a 3-year/60,000 km product warranty coverage from the time of purchase. We also offer overhaul and customization services after use. In addition, we can change the spring rate of the front springs for free at the time of product order.

Details:
- Front Camber-adjustable Spherical-bearing Top Hats
- Rear CNC Machined Aluminum Top Hats
- Suspension Error Canceler
- Front Damping Force Adjustment Dial
- Rear Damping Force Adjustment Dial
- Dual PVS - As a general characteristic of piston valves, damping force is less effective at low piston speeds and increases at higher speeds. The Dual PVS (=The dual preload valve system) used in this product improves damping force at low speeds and suppresses it at high speeds. This results in less thrust and bouncing, and improves tire traction.
- Advanced Bump Rubber - Typical bump stop rubbers are intended to stop the stroke when the suspension bottoms out, but produce a strong impact as well. The advanced bump rubber used in this product is soft and long in shape, allowing the bump rubber to function as a sub-spring by making the bump stop contact earlier. The result is not only a lessening of the impact at bottoms out, but also an increase the overall spring rate at every strokes.

Specifications:
- Spring Rate [N/mm(kgf/mm)]: F=69 (7.0) / R=137 (14.0)
- Spring Length (mm): F=200 (Straight) R=250 (Straight)
- Default Ride Height (mm) ?Upper / Lower Limit): F=-18 (-3 / -40) / R=-9 (0 / -36)
- Upper Mount: F=Spherical Bearing / R=Spherical Bearing

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: 57098071885

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4.6 ★★★★★
Based on 1757 reviews
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Product Reviews
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Red-Dog
San Leandro, US
★★★★★ 5
Great product
Item Package Quantity: 1
This product works awesome. Fast and easy. Customer service is to work with as well. Yes, I recommend this product. Head lights look better and visibility greatly improved.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026
R
Verified Purchase
Rick Rivera
Houston, US
★★★★★ 4
Immediate results
Item Package Quantity: 1
Very easy to apply. Impressive immediate results. However not yet sure if the shine will last. It’s only been 48 hours but so far it’s great and definitely worth the money. I give it 4 stars for now. If the shine lasts it deserves 5 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
S
Verified Purchase
S. Jack
Port Orchard, US
★★★★★ 3
Good…not great
Item Package Quantity: 1
Worked decently. Took care of the light fog but didn’t quite do the job on the center of the lights
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Reviewed in the United States on February 26, 2026
P
Verified Purchase
PhotoGraphics
Alexandria, US
★★★★★ 5
It does work but
Item Package Quantity: 1, Item Package Quantity: 1
I recently bought a small general purpose utility vehicle. Because it was a tow along vehicle behind a motorhome since it was new it is in remarkable condition. That is except for the headlights. They actually aren’t yellowed with age but cloudy from exhaust fumes from the motorhome. Such a haze is hardened and doesn’t even scratch with a fingernail so I had very low expectations for this vehicle. WHAT YOU GET I looked at the listings for all of the famous brands, I chose this one primarily on price, after all I only bought this vehicle for quick errands around the neighborhood. I accept responsibility for not reading every word of their ad, but because I have used many well-known brands of headlight restorer in the past I know that most of them have enough so you can do a couple of vehicles at least. So I was completely not expecting getting three small packets of wipes. That’s it. It can be used only one time and now compared to the kits with bottles that can do several sets of headlights that cost twice as much I see this one is a not such a good value as I thought. And I never buy anything that comes as a wipe, usually by the time I get them they are already dried up, which makes them useless, that’s why they always have an expiration date. I changed my plans and went to work on the Jeep immediately to see if I could make those headlight lens covers usable (they look like sealed beams but the lenses are meant to protect the headlamps). YES NO MAYBE I can’t blame the ad, after reading it again they do state that these are only single use wipes, which means if you start a project you have to finish immediately. Hint: never use wipes on a hot day, they will start drying up as soon as you open the envelope and if the day is hot enough you might not even get through the job before they are totally dry. If I knew how these differed from the well-known brand names I would have made the choice to buy something in a bottle so I can use a real cleaning cloth and re-wet it if necessary. Did these clean my headlamp lenses? As a shopper all you want to know is yes or know, did it work and am I satisfied. The conclusion is they exceeded my expectations. The application process could not be easier, and note that well when some random person approaches you at a gas station and offers to clean your headlights, these are so easy my great-grandmother could apply them. You wipe the lenses with envelope #1, not rub, not scrub, just a simple wipe to make sure you get all of it. I was able to also do my clear lens fog lights which were equally crusted over. Make sure you dry them with a paper towel then let them air dry for a little while. I’m not sure what you would do if you live in an extremely high humidity area, and the manufacturer doesn’t address that. It was a dry day for me so I gave it fifteen minutes. Then you wipe the entire lens with packet #2 – again I was able to do two headlights and two fog lights with one swab. My headlight and fog lenses instantly turned crystal clear like they looked the day the car was made. I should take away a point because I didn’t expect this kit to be only three small envelopes with wet wipes in them but they don’t try to pretend otherwise and results are 100% of why I rated them a full five stars.
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Reviewed in the United States on October 16, 2024
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Verified Purchase
Dolores DelGuercio
Birmingham, US
★★★★★ 5
Good quality
Item Package Quantity: 1
My car is old this product does a very good job.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026

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