SKU: 75028325749

High Flow Valve for Audi RS3 8V/8Y and TTRS 8S

Sale price$255.58 Regular price$283.98
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Description

High Flow Valve for Audi RS3 8V/8Y and TTRS 8SThis valve kit is an evolution of the FMARSDV dump valve we market for the 8P chassis RS3. It was developed for those who have tuned, or plan to tune, their 8S chassis Audi TTRS or 8V 8Y chassis Audi RS3 in excess of 450hp. Audi have seen fit to not change the design of the OEM dump valve from the previous RS3, so the same issues are carried over to the new 8V chassis; namely it was observed that cars over 450bhp were randomly getting errors from the

This valve kit is an evolution of the FMARSDV dump valve we market for the 8P chassis RS3. It was developed for those who have tuned, or plan to tune, their 8S chassis Audi TTRS or 8V/8Y chassis Audi RS3 in excess of 450hp. Audi have seen fit to not change the design of the OEM dump valve from the previous RS3, so the same issues are carried over to the new 8V chassis; namely it was observed that cars over 450bhp were randomly getting errors from the stock solenoid dump valve not functioning. Whilst the stock valve will operate as designed, with the boost level necessary for 450bhp the stock valve couldn’t move the volume of air it needed to, so the ECU was seeing too great a positive boost in the MAP readings between gearchanges and assuming the stock valve wasn’t functioning correctly.

We looked closely at this issue, and noted that there would be no real fix for this as the size of the hole for the valve is too small in the stock elbow. We decided that we would re-design and produce our own elbow, allowing a much larger DV port, which in turn would allow fitment of a larger valve to take advantage of it. We also improved the internal flow of the elbow and removed restriction within the valve. The elbow design has been changed by Audi to accommodate a different throttle body, so our design has changed too.

With the engine management on this engine being MAP based rather than MAF based, which is unlike many other Audi engines, we have also incorporated the option into the kit, of being able to run as a recirculation valve or with an atmospheric discharge/blow off. 

An uprated white spring is included with this kit to cater for those with an upgraded ECU

A service kit for this valve can be found here. We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner


Shipping Notes
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Exchange/Return Notes
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SKU: 75028325749

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THelms
Lake Worth, US
★★★★★ 5
Must buy
Size: 2 Big Kid, Color: Blue
My 7yo loves doing his "magic trick" and stepping into his shoes. They slide on easy and stay on, they fit as expected. He says they are very comfortable and make him go very fast. Stylish as well
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Reviewed in the United States on May 21, 2026
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Kourtney H.
Birmingham, US
★★★★★ 5
Comfy and Cute (but run small)
Size: 3 Big Kid, Color: Black, Size: 3 Big Kid, Color: Black
I wanted black shoes for my kids’ Halloween costumes, but specifically ones they liked and would wear again. I let my three daughters (9, 10 and 11 y/o) scroll Amazon and they chose these, saying their friends had similar ones. These were only $20 a pair, which is a steal for kids tennis shoes so I didn’t expect much. They seem pretty solid. Two of my kids have worn them for a couple weeks and they’re holding up well and seem comfortable-no kid complaints. However, they do run about one size too small. All 3 girls had to size up one size. One of them has a taller and slightly wider foot and she struggles a bit to put them on, but they are comfortable one she does. You can loosen and tighten the elastic laces, but the shoe itself is one piece and doesn’t really stretch so if you have a fat footed kid I’d suggest another shoe, otherwise these are great.
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Reviewed in the United States on October 27, 2025
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Amy Capozziello
Waukegan, US
★★★★★ 4
Good enough
Size: 13.5 Little Kid, Color: Gradient Pink
These are comfy and my daughter loves wearing them. The plastic piece that moves on the laces has ripped up the laces after about a month making it tricky to move. These are a good fill in shoe, but won't last a whole school year.
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Reviewed in the United States on June 5, 2026
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Minniequa Johnson
Belleville, US
★★★★★ 5
Good shoes for growing rough boys
Size: 4.5 Big Kid, Color: All Black/Without Strap
Bought these for my son and he loves them. He so rough on shoes I refuse to pay over $30 on him a pair. I still wanted him to have comfort and stability to support his growing body. These seemed perfect. He can put them on by himself and the fit is true to size. I appreciate when I can find half sizes.
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Reviewed in the United States on March 15, 2026
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Jodie Cunningham
Dallas, US
★★★★★ 5
Great quality
Size: 2 Big Kid, Color: White
My daughter loves these shoes. Very well made and stylish! I don’t want to spend a lot of money on shoes the last few weeks of school and these were perfect.
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Reviewed in the United States on April 23, 2026

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