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Refund
Refund Policy
Last Updated: November 4, 2026
1. Overview
We want you to be completely satisfied with your purchase. If you are not happy with your order, we offer a straightforward return and refund process to make your shopping experience as convenient as possible.
Please review our Refund Policy carefully before making a purchase. This policy explains the conditions, procedures, and timeframes for returns, exchanges, and refunds.
2. Return Eligibility
We accept returns within 30 days of the delivery date, provided that the following conditions are met:
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The item is unused, unworn, and in its original condition.
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The product is returned with its original packaging, tags, and accessories, where applicable.
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Proof of purchase, such as an order confirmation or receipt, is provided.
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The return request is submitted within the specified return period.
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Catback exhaust system FI Exhaust BMW G80 M3/G82 M4 M-Performance 2021+
Catback exhaust system FI Exhaust BMW G80 M3/G82 M4 M-Performance 2021+
Installation of the exhaust system:
| Function | Value |
| Model | BMW G80 M3/G82 M4 |
| Model year | 2021 |
| Engine | 3.0TT S58 |
| OPF vehicle / non-OPF vehicle | Vehicles outside the OPF |
Exhaust system components:
The exhaust system package includes the following components:
- Single front-center pipe + Valvetronic muffler (retains OEM valve settings - no remote control)
Please note that if the exhaust comes with a standard remote control and you decide to upgrade to the Fi Pro remote control, the standard remote control will no longer be included in the shipment.
Made from the highest quality T304 stainless steel, this direct bolt-on system provides an exciting soundtrack that complements the dynamic capabilities of the BMW G80 M3 / G82 M4.
Equipped with Valvetronic technology, the Fi BMW G80 M3/G82 M4 exhaust system allows precise control over airflow, sound volume and overall performance, increasing both power and torque.
With a full catless system, including a valvetronic catback and ultra-high-flow downpipe, you can expect an average power gain of 5-10%.
When driving with a low profile, the closed valves direct exhaust gases through the muffler for a comfortable ride. However, when the valves are fully open, the system unleashes an intense and sporty soundtrack, enhancing the driving experience.
Switching between street and racing modes is seamless, whether using the factory exhaust/sport buttons, driving modes or the Fi Pro remote control upgrade.
Availability may vary depending on vehicle model and exhaust system configuration; please refer to the add-ons section and consult with our representative to confirm.
Behind the exceptional sound and performance are meticulously designed muffler internals, tailored to provide an unparalleled driving experience specifically for this car model.
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Product Advantages
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Our parts improve your car’s power, handling, and responsiveness for a more dynamic drive.
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Every product is sourced from trusted manufacturers, ensuring durability and long-lasting performance.
Perfect Fit
Components are designed for precise compatibility, making installation smooth and worry-free.
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Our team provides professional guidance to help you choose the right parts confidently.
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