SKU: 40865553750

AC Schnitzer side skirts for BMW 3 series G20/G21 (5171320310)

Sale price$496.80 Regular price$552.00
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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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Description

AC Schnitzer side skirts for BMW 3 series G20/G21 (5171320310)Philosophy Free from the compromises of series production, AC Schnitzer develops custom components to the highest standard of perfection. "Form follows function" This guiding principle is systematically applied by the engineers and designers of the aerodynamic components for BMW vehicles. AC Schnitzer aerodynamic components pick up and subtly emphasise the styling lines of the base vehicle, while giving the body striking new contours. At the same time

Philosophy
Free from the compromises of series production, AC Schnitzer develops custom components to the highest standard of perfection.
"Form follows function" - This guiding principle is systematically applied by the engineers and designers of the aerodynamic components for BMW vehicles.
AC Schnitzer aerodynamic components pick up and subtly emphasise the styling lines of the base vehicle, while giving the body striking new contours.
At the same time however, they have a real effect: They increase downforce on the front and/or rear axles, to ensure better ground adhesion.
Only high quality composite materials, such as PU Rim or carbon, are used in production of our AC Schnitzer aerodynamic components. Because only these materials meet our high quality standard.

Material: ASA (Acrylnitril-Styrol-Acrylester)
ASA is a highly technical polymer for outdoor use. This synthetic material is characterised by its particularly high strength, stiffness and weather resistance. ASA owes these properties to its special ingredient: acrylic ester rubber.
We process ASA as sheet material, i.e. the parts are milled "from the solid material". The high-quality, matt and scratch-resistant black surface, which is typical for ASA, is also worked out. The ASA surface does not require any further treatment; AC Schnitzer aerodynamic components made of ASA can be installed directly.
Of course, painting is still possible on request. After the surface of the ASA material has been pre-treated, it can be painted in any colour.

Creative Design
PUR, ASA or Carbon: at AC Schnitzer, all draft designs originate from a true Italian artist: Michele Viandante, who has been Head Designer here for many years. Naturally his designs are not only beautiful but must prove their suitability: for example, many parts are function-tested in the wind tunnel.

Testing
If the calculations match the results, further tests follow. For example, crash tests using dummies confirm that pedestrian protection requirements are fulfilled. Only when all tests have been passed and the homologation certificate has been issued are AC Schnitzer aerodynamic components released for sale worldwide.

Homologation Certificate
The parts homologation certificate is an official document which allows the use of tuning parts in public road traffic within the framework of the (StVZO) German road traffic licensing regulations (and some other countries). After installation or conversion of the part described in the certificate, the vehicle must be presented to an official inspection body. The inspector determines the correct installation and the authenticity of the part and subsequently enters the modification in the vehicle documents. The official operating license of the vehicle thus remains in force. The parts homologation certificate is part of the scope of delivery. Scope of delivery:
- 2 side skirts
- vitro sticker black
- vehicle specific mounting package
- mounting instructions
- homologation certificate Uniqueness of the side skirts - side skirts, black matt
- can be used without painting
- sporty design
- not relevant for approval
- Made in Germany
- made of high quality ASA
- easy mounting
- high weather resistance
- 2 years warranty

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: 40865553750

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4.6 ★★★★★
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SC6218
Chelsea, US
★★★★★ 5
Actually works, and really well
Color: Original Grey
I bought these because I got them on a great deal and was quite skeptical, but they actually worked exactly as advertised and I saw a huge difference after the first night! I understand why they don’t cover the whole foot like a regular sock (it would be stifling), but it would be incredible if they made a pair that go forward enough to cover the ball of the foot. One pair lasted about 3 weeks before the moisturizer wore out (I did notice a dropoff after washing, so for best results put them on when you’re clean and just for overnight, so you can avoid washing). Apologies for no photos- no one wants to see the before photos. These work so well I’ve just come back to order more even though I’m now paying full price. Definitely, definitely recommend.
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Reviewed in the United States on May 28, 2026
L
Verified Purchase
Liana
Bozeman, US
★★★★★ 5
Comfortably and works
Color: Original Grey
❤️ I used these with magnesium lotion on my heals for 3 nights, soaked my feet every morning and cracked heals are gone!
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Reviewed in the United States on April 25, 2026
T
Verified Purchase
T. U.
Draper, US
★★★★★ 5
A game changer for deep heel cracks and psoriasis!
Color: Original Grey, Color: Original Grey
If you have deep cracks or psoriasis on your heels, get these they are a total game changer! They hold in Vaseline and topical meds perfectly while I sleep, providing much needed relief without getting all over my sheets. My heels are healing faster and my callouses are softer and don’t split open because the moisture is trapped against the skin all night with the built in gel cushion lining instead of rubbing off. So much hydration. The fact that it is a 2 pack is perfect because while one pair is being washed and drying, you still have a set to wear. Very soft, stretchy, breathable, and easy to sleep in. I highly recommend them!
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Reviewed in the United States on January 31, 2026
J
Verified Purchase
James P McMahon
Phoenix, US
★★★★★ 5
Great item!!
Color: Original Grey
These socks actually work!!! No more split skin on my heels!!
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Reviewed in the United States on May 9, 2026
P
Verified Purchase
Paula S
Alexandria, US
★★★★★ 3
Quality and Price
Color: Original Grey
For me a little tight on my ankles
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Reviewed in the United States on March 20, 2026

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