FI Exhaust Cat-Back System For Audi 8Y RS3 Sportback 2021+
SKU: 6090227428

FI Exhaust Cat-Back System For Audi 8Y RS3 Sportback 2021+

Sale price$1746.00 Regular price$1940.00
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

FI Exhaust Cat-Back System For Audi 8Y RS3 Sportback 2021+Audi 8Y RS3 Sportback Fi Exhaust (Frequency Intelligent Exhaust) high performance valvetronic exhaust system is direct replacement bolt on system manufactured out of a high grade T304 stainless steel that offers an exhilarating soundtrack. The Fi EXHAUST system is designed with a valvetronic technology to control airflow, sound volume and enhance the overall performance and torque. On average horsepower is expected to increase from 5 10% after

Audi 8Y RS3 Sportback Fi Exhaust (Frequency Intelligent Exhaust) high-performance valvetronic exhaust system is direct replacement bolt on system manufactured out of a high-grade T304 stainless steel that offers an exhilarating soundtrack.

The Fi EXHAUST system is designed with a valvetronic technology to control airflow, sound volume and enhance the overall performance and torque. On average horsepower is expected to increase from 5-10% after installing a full catless system, which includes a valvetronic catback and ultra-high flow downpipe.

When valves are closed exhaust gasses are routed through the muffler resulting in a low-profile comfortable drive. However, when the valves are fully open an intense and sporty soundtrack is produced.

Depending on your car model and exhaust setup, switching exhaust valves between street and race modes may be achieved using a factory exhaust/sport button, drive modes, or by selecting the Fi Pro remote control upgrade. Please note that not all options are available for every model. Refer to the available section and contact our representative for confirmation.

The unique sound and performance for Audi 8Y RS3 Sportback is achieved through individually designed muffler internals that are fabricated to offer an ultimate driving experience.

Please note each part of the Fi EXHAUST system needs to be ordered separately.
Different exhaust parts are offered depending on the vehicle version.

Please note that the actual product may vary in appearance depending on the year of the car and area. The exhaust system is also subject to changes to the design over an extended time period. Product pictures are for illustration purposes only.

 

Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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: 6090227428

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Caffeinated Hermit
Bozeman, US
★★★★★ 5
Great play sneaker for outside
Size: 1 Little Kid, Color: Fuchsia
These sneakers fit my daughter’s feet perfectly and she loves the color. I trust the Saucony brand as I’ve owned several pairs. They are well made and this pair is an excellent option for play sneakers. My kids are outside a lot and I need a sneaker that can handle running, climbing and occasionally getting wet. There is generous breathable mesh and the shoes dry quickly. My daughter has slightly wider feet and these fit comfortably. I also appreciate that they are Velcro so can be put on or taken off quickly because we all know kids are impatient when it comes to playtime.
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Reviewed in the United States on May 19, 2026
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EmilySue
Dallas, US
★★★★★ 5
Great everyday sneaker
Size: 1 Little Kid, Color: Fuchsia
I bought these for my kid and honestly didn’t expect to like them as much as I do, but they’ve been great so far. They’re lightweight, easy to get on, look cute, fit well, and actually seem comfortable enough that there’s been zero complaining (which is saying a lot). The grip on the bottom is solid, and they’ve held up really well with everyday wear, running around, playground, all of it. I also like that they’re breathable, so no sweaty feet at the end of the day. They’re not the most “fancy” sneaker out there, but for the price, the quality feels really fair. If anything, I wish they came in even more color options because we’d probably buy another pair. Overall, really good everyday shoe. If you just need something reliable, comfortable, and kid-proof, these definitely do the job.
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Reviewed in the United States on April 21, 2026
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Samara Dawson
Whiting, US
★★★★★ 5
You've Found Your Daughter's Match! Superior Sneakers for Girls!
Size: 1 Little Kid, Color: Fuchsia, Size: 1 Little Kid, Color: Fuchsia
Super-cute, stylish sneakers meet cushiony comfort at a very reasonable price. These sneakers have it all! The bed and sole of these sneakers provide significant shock-absorption making them ideal for serious athletics or a long day out at the theme park. Our daughter went from a Keds-type sneaker to these and she was beaming 😁! In addition to their comfort and ppearance is the fact that they fasten and unfasten with ease. Any child can put them on and take them off. The laces stretch and the Velcro is highly adjustable. Everything has been constructed with integrity. They are, also, washable so you can continue to maintain their crisp, vibrant colors and keep them looking new. They fit true-to-size and can accodimate somewhat wide feet as well. There are only positive things to say about these 5+ stars!
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Reviewed in the United States on April 11, 2026
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RJS
Cuba, US
★★★★★ 5
Nice, Tough & Comfortable!
Size: 6.5 Wide Big Kid, Color: Black
Bought as an everyday school shoe for my 10 year old son. He likes them a lot and is holding up great through rough boy play, and they still look good after a couple months now.
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Reviewed in the United States on January 20, 2026
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Peri Nikolas
Boise, US
★★★★★ 5
Great
Size: 4.5 Big Kid, Color: Pink/Purple
perfect
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Reviewed in the United States on May 12, 2026

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