SKU: 5951418558

Supertech - Inconel Exhaust Valves (Set of 10) - 2017-2025 Audi RS3; 2018-2023 Audi TT RS

Sale price$205.84 Regular price$228.71
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

Supertech - Inconel Exhaust Valves (Set of 10) - 2017-2025 Audi RS3; 2018-2023 Audi TT RSSupertech sodium filled valves made of Inconel Nimonic alloy offer a significant reduction in valve head temperatures that are required for todays modern turbo engines. A cooler valve improves the material strength and durability while allowing the tuner more flexibility and a wider range of spark timing advances. Combine that with an average weight reduction of 10% and there isnt a cooler valve on the market Valves play a critical role in any

Supertech sodium filled valves made of Inconel/Nimonic alloy offer a significant reduction in valve head temperatures that are required for today’s modern turbo engines.

A cooler valve improves the material strength and durability while allowing the tuner more flexibility and a wider range of spark timing advances. Combine that with an average weight reduction of 10% and there isn’t a cooler valve on the market

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: 28.00mm(std)
  • Material: Inconel-Nimonic
  • Groove Type: Single Groove
  • Length: 101.80mm
  • Stem Diam: 5.96mm
  • Back-cut angle
  • Undercut stem
  • One piece forged valve (non-magnetic)
  • Magnetic friction welded wafer, Hardened to 52 HRC min
  • “Superfinish” valve stem with a surface roughness of about 1/3 of a regular valve

Benefits

  • Reduced valve head temperature
  • Allows the tuner more flexibility and a wider range of spark timing advances
  • Improves material strength and durability

What's In The Box?

  • 10 - Exhaust 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: 5951418558

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DT
Lexington, US
★★★★★ 5
Rugged, Reliable, and Built to Last
I picked up this Carhartt billfold wallet a while ago, and it’s exactly what I expected from the brand—tough, well-made, and built for everyday use. It’s holding up great, even after months of being stuffed in my pocket, dropped, and tossed around. What I Like: Durable Materials: The leather and stitching are rugged and high quality. It still looks good and hasn’t shown signs of wear. Plenty of Storage: There’s more than enough space for cards, cash, and ID, and it doesn’t bulk up too much. The removable passcase is a nice bonus. Classic Look: Clean, no-nonsense design. It has a workwear vibe that fits the Carhartt name perfectly. Comfortable to Carry: Even fully loaded, it fits nicely in my back pocket without being uncomfortable or bulky. Feels Like It'll Last for Years: You can tell this wallet was made with longevity in mind. Final Thoughts: If you want a simple, reliable wallet that won’t fall apart on you, this one’s a great pick. It looks good, performs even better, and lives up to the Carhartt name. Highly recommend for anyone who values durability over flash.
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Reviewed in the United States on April 12, 2025
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W. Proctor
Chelsea, US
★★★★★ 4
Overall it's a pretty nice wallet, and its different, unique.
Color: Carhartt Brown
This is a nice wallet. I am deducting one star for the reason another buyer noted. The card pockets are extremely tight. A solution that I came up with was to take a plastic putty knife and push down inside the card pockets and stretch the material out, this helped a bunch! One thing I really like, the material is not as slick as a leather wallet, so if a person has trouble with their wallet sliding out of their pocket, I think this one would be less likely to do that. Overall I'm pretty happy with it.
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Reviewed in the United States on February 4, 2026
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cb smith
Birmingham, US
★★★★★ 5
good
Color: Carhartt Brown
it’s a good wallet i like it
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Reviewed in the United States on April 26, 2026
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Liam
Fort Morgan, US
★★★★★ 5
This is the wallet you actually want.
Bought in late 2018, letting this wallet retire now in early 2026. Strong, durable wallet. For the money, definitely worth it.
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Reviewed in the United States on February 7, 2026
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Eric
Charlottesville, US
★★★★★ 5
Very Durable
This is the second wallet I've bought. Same type. First one was for a durability test. Pull, stretch, bend, twist at the seam, and it held up much better than similar wallets in the same price range. Highly recommend this wallet if you are hard on them like I am. Plenty of space for cards, cash, receipts, random papers and other items that seem to find their way into it throughout the year. And still doesn't feel big and bulky to sit on. I was a die hard trifold guy for many years because I couldn't find a bifold that could hold all my stuff in it. But this bifold holds everything and still has plenty of room for more. If you want a good quality wallet for a decent price the mossy oak Carhartt bifold is definitely the way to go, you won't be disappointed.
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Reviewed in the United States on June 21, 2023

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