SKU: 59085910197

Supertech - Black Nitride Intake Valves (Set of 10) - 2017-2025 Audi RS3; 2018-2023 Audi TT RS

Sale price$138.96 Regular price$154.40
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

Supertech - Black Nitride Intake Valves (Set of 10) - 2017-2025 Audi RS3; 2018-2023 Audi TT RSSupertech intake valves are made exclusively from an enhanced versions of EV8 (21 4N) steel. This is the highest grade of steel available and provides the strength to withstand just about any application. Valves play a critical role in any performance orientated engine. Upgrading the valves in your VW or Audi engine increases reliability with slow forging processes, upgraded aerospace alloys, CNC machining, and heat treatments to withstand extreme

Supertech intake valves are made exclusively from an enhanced versions of EV8 (21-4N) steel. This is the highest grade of steel available and provides the strength to withstand just about any application.

Valves play a critical role in any performance-orientated engine. Upgrading the valves in your VW or Audi engine increases reliability with slow forging processes, upgraded aerospace alloys, CNC machining, and heat treatments to withstand extreme abuse from high-powered race engines and daily driven road vehicles making beyond factory power levels. The power an engine produces is limited to airflow. As the smallest chokepoint in your cylinder head, performance valves are engineered to increase airflow by limiting turbulence created by valve stem obstruction and careful detailing of the valve head and valve angles.

Features

  • Head Diam: 33.85mm(std)
  • Material: Stainless Steel 21-4N
  • Groove Type: Single Groove
  • Length: 103.9mm
  • Stem Diam: 5.98mm
  • Back-cut angle
  • Undercut stem
  • One piece forged valve (non-magnetic)
  • Magnetic friction welded wafer, Hardened to 52 HRC min
  • Black Nitride for superior hardness keeping core ductility
  • “Superfinish” valve stem with a surface roughness of about 1/3 of a regular valve

Benefits

  • Less Friction
  • Better Flow Rates
  • Better Sealing
  • Improves durability and reduces carbon build up

What's In The Box?

  • 10 - Intake Valves

Warranty

  • Due to the nature of the application, these parts are sold without any express warranty or any implied warranty of merchantability, or fitness for a particular purpose.
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: 59085910197

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DIANE T
New York, US
★★★★★ 5
Softness
Color: White, Size: Queen (Pack of 4)
VERY nice, and SOFT. Also extremely low cost for Extremly good QUALITY....
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Reviewed in the United States on May 30, 2026
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Matthew G Stanley
Waukegan, US
★★★★★ 5
Very soft pillow cases
Color: Black, Size: Standard (Pack of 4)
Very nice pillow cases. When I saw them in the packaging I thought they look rough. But I was surprised. They are soft. I recommend them. Great price.
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Reviewed in the United States on May 8, 2026
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Paiger
Battle Creek, US
★★★★★ 5
Very good product
Color: White, Size: Queen (Pack of 4)
These are pretty good pillowcases. They’re a little silky feeling for me, but they wash up well. They fit good and they’re nice and white.
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Reviewed in the United States on May 25, 2026
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EM
Charlottesville, US
★★★★★ 4
Good product and price
Color: Beige, Size: Queen (Pack of 4)
These pillow cases were a good price point, they are soft on your face, and pretty color. My only negative comment is that we use standard sized pillows, and these cases are too big. So I fold the open end into itself to prevent bunching/loose ends.
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Reviewed in the United States on March 26, 2026
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Megan
Grantham, US
★★★★★ 5
soft and comfortable
Color: Beige, Size: Queen (Pack of 4)
Love these pillow cases. Perfect size, super soft and comfortable, good quality.
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Reviewed in the United States on May 4, 2026

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