BM Performance Centre GKTech F8X M2/M3/M4 ADJUSTABLE REAR UPPER CONTROL ARMS (PAIR)
SKU: 23538391182

BM Performance Centre GKTech F8X M2/M3/M4 ADJUSTABLE REAR UPPER CONTROL ARMS (PAIR)

Sale price$179.55 Regular price$199.50
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

BM Performance Centre GKTech F8X M2/M3/M4 ADJUSTABLE REAR UPPER CONTROL ARMS (PAIR)The BM Performance Centre GKTech F8X M2 M3 M4 Adjustable rear upper arms are used to adjust your rear camber. Adjustable arms give you the ability to tune your vehicle's rear camber to perfection. The lengths on these arms are fully adjustable to your specs when doing an alignment and with the right adjustments, straight line and cornering of your vehicle will be improved. Replaces the OEM inboard bushing with spherical bearing Huge 30mm to +40mm

The BM Performance Centre GKTech F8X M2/M3/M4 Adjustable rear upper arms are used to adjust your rear camber. Adjustable arms give you the ability to tune your vehicle's rear camber to perfection.  

The lengths on these arms are fully adjustable to your specs when doing an alignment and with the right adjustments, straight line and cornering of your vehicle will be improved.


- Replaces the OEM inboard bushing with spherical bearing
- Huge -30mm to +40mm adjustment range
- Feature high quality 5/8" Teflon lined pillow ball rod ends which eliminate the flex found in factory rubber bushing offering a more direct and predictable feel.
- 28mm, 3mm wall thickness 4130 chromoly tube with CNC machined ends, TIG welded and e-coated for a long lasting finish. 
- CAD designed, FEA tested and rigorously used in our own F80 M3 race car

NOTE: 2 sets required per vehicle. 

  

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: 23538391182

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4.9 ★★★★★
Based on 136 reviews
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lovecolor1
Chelsea, US
★★★★★ 5
My favorite
Size: Medium, Color: Opal Blue/White/Cruise Blue (3-pairs)
My favorite socks, too bad under armour discontinued the cotton blend fabric and went to 100% polyester 😠
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
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Natalie Williams
Houston, US
★★★★★ 5
Comfortable
Size: 6-10, Color: Halo Gray/Assorted
These are my favorite socks!
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Reviewed in the United States on September 22, 2025
L
Verified Purchase
LC
New York, US
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
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Verified Purchase
Lucy Mejia
Boise, US
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
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Twins9
Omaha, US
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026

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