Exhaust› Exhaust Pipes, Systems and Components

FI Exhaust

Valvetronic Exhaust System with ECU Control

$3,600.00

SKU: AD-S4-CBV + TIP6389S*4+R2016OL+OBD-CAB-V

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The FI Exhaust valvetronic exhaust system is a direct replacement bolt-on system manufactured from high-grade T304 stainless steel. It features an intelligent ECU exhaust control valve that optimizes both acoustics and performance.

With the valves closed, the system provides a low-profile, comfortable drive. When the valves are fully open, it produces an intense and sporty soundtrack for high performance.
Show original supplier description
The FI Exhaust valvetronic exhaust system for the Audi B8 S4 Sedan/Avant and S5 Sportback (2009-2015, 3.0TFSI) is engineered for an exhilarating soundtrack and improved performance. Constructed from premium T304 stainless steel, this system offers a direct bolt-on replacement. At its core is the Frequency Intelligent (FI) Valvetronic technology, which meticulously controls airflow and sound volume. This allows for a seamless transition between comfort and performance. When the valves are closed, exhaust gases are routed through the muffler for a quiet, low-profile drive, ideal for everyday use. Upon opening, the valves unleash an intense, sporty tone and maximize exhaust flow for enhanced performance. This system offers customizable sound profiles and performance characteristics. Users can opt for different control methods, including a factory exhaust/sport button, drive modes, or the optional Fi Pro remote control upgrade. Please note that some options and features may vary by specific car model and configuration; consult with a representative for confirmation. Optional accessories like remote controls and various tip finishes are available to further personalize the system.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandFI Exhaust
Part NumberAD-S4-CBV + TIP6389S*4+R2016OL+OBD-CAB-V
CategoryExhaust
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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