SKU: 24268611805

ST Coilover Kit 03-08 BMW Z4 (Z85)

Sale price$932.85 Regular price$1036.50
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

ST Coilover Kit 03-08 BMW Z4 (Z85)Looking for maximum performance for your car? Our adjustable ST XTA Coilover kits are the upgrade you need. All ST XTA systems are delivered with a linear race springs system, adjustable dampers, and aluminum unibal camber adjustable top mounts. ST XTA Coilover kits deliver precise adjustment to your ride height so you control the look of your car. We manufacture the adjustable spring perch made of durable and friction optimized polyamide composite

Looking for maximum performance for your car? Our adjustable ST XTA Coilover kits are the upgrade you need. All ST XTA systems are delivered with a linear race springs system, adjustable dampers, and aluminum unibal camber adjustable top mounts. ST XTA Coilover kits deliver precise adjustment to your ride height so you control the look of your car. We manufacture the adjustable spring perch made of durable and friction-optimized polyamide composite material with a stainless steel insert. Thanks to the composite material corrosion is prevented between the strut and perch ensuring long lasting height adjustability while the stainless steel insert provides strength and confidence! ST XTA Coilovers come preset to our factory recommended damper settings, the same configuration we test them at on our KW shock dynos before they go into your box. The 16 distinct clicks of adjustable rebound damping allow you to refine the driving dynamics with a simple turn of the adjustment knob. Each kit includes a detailed damper setup manual making it easy to reset to our recommended setting at any time. Whether your preference is comfort, performance, or something in between; ST XTA puts the finer details of the driving dynamics in your hands. The top mounts included with our ST XTA Coilover kits allow you to adjust the camber at the front axle to dial in aggressive wheel and tire fitment. They also allow you to maximize the tire's contact patch for driving in fast corners and any other driving scenario that demands maximum grip. Galvanized zinc coated steel struts optimize corrosion protection for long lasting use. We add a dust protection system to prevent unwanted dirt and particulate from coming in contact with the hardened chrome piston rod or getting into the valve packs. We reinforce the system with a multi-layered pressure resistant sealing package, mono block guide system and a low friction piston band which works inside the pressure resistant internal damper housing.

  • Elastomer Bump stop with integrated dust protection system prevents water and dirt particles reaching the piston rod and seals. The highly resilient bump stops act as dynamic load limiters while maintaining ride quality and durability.
  • Composite spring perch made from wear-resistant, friction-optimized polyamide composite with an embedded stainless-steel insert. The polyamide composite prevents oxidation while the stainless-steel insert maximizes strength.
  • ST coilovers are built by hand by the experts at KW in Fichtenberg, Germany. Each damper is tested on a shock dyno to verify it's making the proper forces before being put into the ST box.
  • Seamless Ride Height Adjustment - ST's composite spring perch and unique trapezoidal thread pitch make ride height adjustability a breeze so you can dial in your preferred look.
  • Linear race spring system provides a consistent response while driving and makes it easy to swap rates to further personalize your setup.
  • Aluminum unibal top mounts improve steering response and feedback while allowing you to dial in your camber when applicable.
  • ST XTA coilovers feature adjustable rebound damping which puts you in control of how comfortable or sporty your car feels.
  • Galvanized steel housing for improved resistance to corrosion.
  • 5 Year Limited Warranty - Unlimited Mileage
  • Made in Germany

This Part Fits:

Year Make Model Submodel
2003-2005 BMW Z4 2.5i
2003-2005 BMW Z4 3.0i
2006-2008 BMW Z4 Coupe 3.0si
2006-2008 BMW Z4 Roadster 3.0i
2006-2008 BMW Z4 Roadster 3.0si
Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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: 24268611805

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4.3 ★★★★★
Based on 17 reviews
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Madeline Ayzenberg
Whiting, US
★★★★★ 4
Good and convenient.
Color: Black
A great calculator. Simple, has all necessary features, works well and quickly. Great for students and adults alike, works for a long time, responds quickly doesn’t lag. Havent needed to charge it yet- great battery life and screen, even has brightness and zoom options! Even spdurabke enough to hold up to all the times it’s been dropped😅 Overall, a great purchase.
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Reviewed in the United States on April 28, 2026
N
Verified Purchase
Nara
Birmingham, US
★★★★★ 5
Good quality
Color: Pink
Good quality. The color is very cute, and I used it for pre-algebra, algebra, and advanced maths, and it does have other modes for other grades, so this would work for grades 6-12. It has lots of features that are required for highschool, so it's nice. It also came with another simpler scientific calculator with works with basic maths and elementary levels. It was worth the buy and I'd do it again. I gave the graphing calculator to my oldest in middle school now going to high school and the scientific calculator to my youngest that is in elementary.
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Reviewed in the United States on July 13, 2025
L
Verified Purchase
Linh Huynh
Charlottesville, US
★★★★★ 5
Best budget graphing calculator
Color: Black
For half the price of The ti-84 plus It can do all things that calculator can do and more. Let’s start with the design, I really like the design of this calculator. It’s minimalistic, simple, not too distracting but still ha some flair. I like the rose pattern on the back it gives it a nice touch that stands out from other calculators. For a graphing calculator, It’s easy enough to use of course like with all graphing calculators there is a learning curve. You really need to familiarize with all of the buttons in order to use the calculator properly. I had to look up a lot of YouTube tutorials to get the feel of how the buttons work. That being said if you do know how to fully use this calculator is very useful. There is a bunch of menus with a lot of features. The notetaking feature is the one I normally use the most. It’s really helpful keeping mathematical equations and formulas for reference later. It really helped me a lot but it comes to test taking. The thing i hate about Texas instruments calculator is when I type in 2xπ, it would just give me 2π without an option to see the decimal answer. This really irritated me as it was something I could’ve easily guessed without a calculator. However with the Casio calculator when I type in the same equation, it gives me a choice to see the decimal answer along side with 2π. In a lot of situations involving pi, this could make or break a problem. I am very glad that Casio allows you to see both answers. It’s very good value for money. Like I said for half the price of the ti-84 plus, the Casio can do exactly the same things that calculator can do and then some. Great value for money. It’s pretty concerning that Texas instruments has been the the standard calculator in schools and colleges and is required in a lot of classes. Not a lot of people can shell out double the price for the calculator. I hope to see casio being used more in American schools as we need more choice and competition as clearly lack there of.
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Reviewed in the United States on May 12, 2022
D
Verified Purchase
derekw
San Leandro, US
★★★★★ 5
Really good for Pre-Calc
Color: Black
I’ve had this calculator for around a month and it’s really good. I’m currently in Pre-Calc 2 and this thing is amazing; I haven’t used the graphing feature quite a lot, but it has a bunch of other neat features besides that. Features that have really helped me is where the calculator gives exact radical (square root) values of trig functions (Ex. sin 60° = √3/2) and giving exact radian values such as pi/6 instead of a decimal. Which was the one thing that made me stop using my TI-84 (other than it was big and slow). It also solves equations up to 6th degree and has a very easy-to-use UI that doesn’t take that long to get used to. Less commonly used functions show up on screen by pressing the F1-F6 keys which is a lot better than the TI’s navigating through 4 different menus. Overall, it’s a wonderful calculator that has awesome features even if you don’t use it for graphing (which i haven’t been doing very much graphing lately) ESPECIALLY for the price (it goes on sale for ~$50 often)
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Reviewed in the United States on May 1, 2024
G
Verified Purchase
Giselle Trejos
Port Orchard, US
★★★★★ 5
A super option
Color: White, Color: White
This calculator is excellent, I loved all its programs and what additional you can make programs and enter them. There are some tutorials on YouTube that clearly explain their use from 0
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Reviewed in the United States on February 11, 2026

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