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Description
Fi Exhaust Cat-Back Exhaust System For Audi RSQ8 2021+Audi RSQ8 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
Audi RSQ8 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 RS Q8 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.
Catback Exhaust:
Non-OPF Version:
Mid Pipe + Valvetronic Muffler (Fit Both OPF/Non-OPF version) (Compatible with OEM elect. Valve - Stock Setting) (AD-Q8RS-CBE)
OPF Version:
Mid Pipe + Valvetronic Muffler (Fit Both OPF/Non-OPF version) (Compatible with OEM elect. Valve - Stock Setting) (AD-Q8RS-CBE)
Downpipes (Optional):
Non-OPF Version:
1.Ultra High Flow DownPipe (LM-URUS-NCAT)
2.Sport 200 cell DownPipe (LM-URUS-CAT200)
OPF Version:
1.Ultra High Flow DownPipe (OPF Version) (LM-URUSF-NCAT)
2.Sport 200 cell DownPipe(OPF Version) (LM-URUSF-CAT200)
Fi EXHAUST Pro Remote Control System (Optional):
OBD2/Mobile APP Remote Control System Module + EV Actuator*2 (R2020OBD + ACT-BN*2
+ OBD-CAB-BNE)
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 RS Q8 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.
Catback Exhaust:
Non-OPF Version:
Mid Pipe + Valvetronic Muffler (Fit Both OPF/Non-OPF version) (Compatible with OEM elect. Valve - Stock Setting) (AD-Q8RS-CBE)
OPF Version:
Mid Pipe + Valvetronic Muffler (Fit Both OPF/Non-OPF version) (Compatible with OEM elect. Valve - Stock Setting) (AD-Q8RS-CBE)
Downpipes (Optional):
Non-OPF Version:
1.Ultra High Flow DownPipe (LM-URUS-NCAT)
2.Sport 200 cell DownPipe (LM-URUS-CAT200)
OPF Version:
1.Ultra High Flow DownPipe (OPF Version) (LM-URUSF-NCAT)
2.Sport 200 cell DownPipe(OPF Version) (LM-URUSF-CAT200)
Fi EXHAUST Pro Remote Control System (Optional):
OBD2/Mobile APP Remote Control System Module + EV Actuator*2 (R2020OBD + ACT-BN*2
+ OBD-CAB-BNE)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Polyglo mit
Exact polyglo applicator mit. Works perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 5
The Mitt is it.
I ordered the applicator because the Poli Glow Kit on hand was ordered and received a couple of years ago and it had the old chamois covered rectangular applicator. I could tell by looking that the mitt was the better solution. Also, the mitt was described well in an online video, so using it was easy to learn. The results were fantastic and I am very pleased with it.
The only thing I would change is to add some more information on how often to replenish the mitt and with how much Poli Glow liquid. I wasn't sure if I was skimping or wasting the material. As I approached halfway, I couldn't tell if I was going to run out before I finished, so I tried to be as frugal as possible. Turns out, I had liquid left over.
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Reviewed in the United States on September 13, 2016
★★★★★ 5
Work perfect
Work real good
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Reviewed in the United States on June 11, 2026
★★★★★ 5
Didnt need
Great product
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Reviewed in the United States on June 5, 2026
★★★★★ 4
Works much better than the original applicator which left streaks and overlaps
Works much better than the original applicator which left streaks and overlaps. Much easier to use on contours and crevices.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2014
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