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 Aug 28 - Sep 2

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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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4.7 ★★★★★
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Hatem
Houston, US
★★★★★ 5
Klipsch R50 M next generation
Size: 5.25” Woofer
In spite of small size sound is very nice iam using it with a subwoofer and with my yamaha A4A AV receiver i like it iam hearing mostly heavy metal and the speakers have a nice punch and attack
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Reviewed in the United States on February 18, 2026
Y
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Yaniv.F
Massapequa, US
★★★★★ 4
compact surrounds that blend well with the right setup
Size: 4” Woofer
I picked up the Klipsch R‑40M as part of a full 5.1 system built around the R‑50M fronts and the R‑50C center. My original plan was to use another pair of R‑50M speakers in the back, but they simply didn’t fit in the rear cabinet space I have. The R‑40M ended up being the only model that fit comfortably, so they became my surround channels. In terms of build quality, they feel solid and consistent with the rest of the Reference Next‑Gen line. The copper woofers and updated horn design give them the same visual identity as the larger models, which helps the whole system look cohesive. They’re compact enough to place in tighter spaces without compromising too much on performance. Sonically, the R‑40M does a respectable job as a surround speaker. Effects are clear, directional cues are easy to follow, and they integrate smoothly with the more powerful R‑50M fronts. That said, they are noticeably less powerful than the R‑50M, so you need to spend a little time balancing your levels. Once I bumped their channel trim a bit and adjusted the distance settings, the rear soundstage locked in nicely and felt much more even. They won’t deliver the same fullness or dynamic punch as the larger models, but for rear channels that’s usually not a deal breaker. What matters is clarity and consistency, and the R‑40M handles both well. Movies with active surround mixes feel immersive, and ambient effects wrap around the room without calling attention to the speakers themselves. If you’re building a system where space is limited in the back, the R‑40M is a practical and capable choice. Just be prepared to fine tune your calibration so they match the output of the bigger speakers up front. Once dialed in, they round out a 5.1 setup very effectively.
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Reviewed in the United States on January 22, 2026
I
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Integrion
Carnegie, US
★★★★★ 5
Great Bang for the Buck!
Size: 5.25” Woofer
These R50 Studio Monitors are worth every penny. One could easily spend a heck of a lot more to get less. Have been a pro audio engineer my entire life. These monitors kick out clean, solid bass and accurate highs. Klipsch did a excellent job designing these monitors. Perfect for smail spaces where fidelity is critical. If you wall mount these, make sure you leave at least a 1.5 inch air gap between the back of the monitor and the wall. These units are sweet.
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Reviewed in the United States on July 22, 2025
K
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Kgolfinghawaii
Whiting, US
★★★★★ 5
Worth the price
Size: 5.25” Woofer
I had in ceiling front speakers and went with these instead. The front ceilings are now height speakers. Sounds great now.
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Reviewed in the United States on January 23, 2026
A
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Amazon Customer
Fort Morgan, US
★★★★★ 5
Small but mighty
Size: 5.25” Woofer
Great sound. I can turn my stereo up loader than I care to listen to it and notice no distortion.
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Reviewed in the United States on April 20, 2026

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