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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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]
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SKU: 6090227428

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David AL
Fort Morgan, US
★★★★★ 5
Comfortable and well made.
A well-made, cotton shirt, suitable for casual wear. I like to wear this in the summer untucked with the sleeves rolled up over a colored t-shirt. I found the tail of the shirt to be a bit too long to wear untucked without looking odd, so I had it shortened; now it fits perfectly. It is made of cotton, so an iron is mandatory if you don’t want to look like you slept in it, and it will get some wrinkles as the day progresses, but that’s cotton’s nature. I liked it so much I purchased a second one.
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BASHA
Phoenix, US
★★★★★ 4
Nice shirt, runs a tad small.
Fit Type: Slim Fit, Color: Light Blue/Indigo, Plaid, Size: X-Large
I guess that slim-fit is not for my hubby and this is a little too fitted across his pooch belly. But he loved the blue color plaid. Fits well elsewhere. If you're not a flat-stomach, dont bother with slim-fit I guess.
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Reviewed in the United States on December 29, 2025
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TJ Stewart
Pawtucket, US
★★★★★ 5
worth the money
Fit Type: Slim Fit, Color: Light Blue/White, Gingham, Size: Medium
perfect fit and beautiful after 3 washes.
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Reviewed in the United States on May 1, 2026
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Amazon Momma
Omaha, US
★★★★★ 5
Great shirt, great price!
Fit Type: Slim Fit, Color: Navy, Tonal Floral Print, Size: Small
Bought the shirt at a steal of a price for my son. He loves it!
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Reviewed in the United States on April 16, 2026
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Paul Lau
Port Orchard, US
★★★★★ 3
Cheap and nice shirt
Fit Type: Slim Fit, Color: Pink/White, Buffalo Plaid, Size: Large
Beyond the actual color of the shirt is not as described, the shirt is fit to size as well as comfortable. It is not wrinkle free treating but the condition is acceptable after drying in dryer.
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Reviewed in the United States on March 12, 2026

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