B9 S4/S5 Valved Sport Exhaust System

Audi B9 S4 / S5 Valved Sport Exhaust System

$2,499.99
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Audi B9 S4 & S5 Valved Exhaust System Full T304 Stainless Steel System with Electronic Valve Control Overview The Audi B9 S4 and S5, powered by the EA839 3.0L V6, have impressive performance potential—but the stock exhaust hides much of...

CONFIGURATION: Valved Sport Exhaust System

Valved Sport Exhaust System

TIPS: (4) Brushed Steel (3.5 Outlet)

(4) Brushed Steel (3.5 Outlet)
(4) Burnt (3.5 Outlet)
(4) Black (3.5 Outlet)
(4) Carbon Fiber 1x1 (3.5 Outlet)
(4) Forged Carbon Fiber (3.5 Outlet)
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Description

Audi B9 S4 & S5 Valved Exhaust System

Full T304 Stainless Steel System with Electronic Valve Control


Overview

The Audi B9 S4 and S5, powered by the EA839 3.0L V6, have impressive performance potential—but the stock exhaust hides much of this engine’s true character. The Valvetronic Designs Full Valved Exhaust System unleashes its voice, delivering an aggressive, motorsport-inspired tone when desired, and stock-like refinement when needed.

Unlike typical setups requiring multiple components from different vendors, our system is engineered as a complete solution—from the OEM or aftermarket downpipe all the way to the exhaust tips. This single-package design eliminates the need for mixing and matching resonator sections or axle-backs from other brands, ensuring perfect fitment, seamless performance, and consistent sound quality.

With valves open, expect a bold exhaust note, pronounced overrun crackles, and a commanding presence. With valves closed, the car returns to quiet factory manners, with zero drone when paired with the OEM downpipe.

For those upgrading from the V8-powered B6 or B7 S4, our system delivers the level of engagement and emotional sound you’ve been missing—ensuring your B9 ownership experience is just as exciting.


Why It Works

  • One-Piece System Design: Eliminates the need for mixing components from multiple vendors.

  • Electronic Valve Control: Switch between aggressive and refined sound instantly.

  • Mandrel-Bent Construction: Maximizes flow for improved throttle response and power.


Sound & Control

  • Valves Open: Aggressive tone with rich midrange and sharp overrun crackles on deceleration.

  • Valves Closed: Quiet, refined, and OEM-like for comfortable daily driving.

  • No Drone: When paired with the OEM downpipe, cabin comfort is unaffected.


Construction & Options

  • Material: T304 stainless steel for long-term durability and corrosion resistance.

  • Weight Savings: 16.4 lb lighter than the OEM exhaust system.

  • Craftsmanship: Precision TIG welds and mandrel bends for optimal flow and strength.

  • Tips: Includes premium exhaust tips for a finished, performance-oriented look.


Fitment

  • 2017–2024 Audi S4 (B9)

  • 2017–2024 Audi S5 (B9)

    (Doesn't fit Sportback models)


Installation Notes

  • Direct-fit for sedan models.

  • Coupe models require modification to shorten the mid-section for proper fitment. Contact info@valvetronic.com for guidance.


What’s Included

  • Full T304 stainless steel valved exhaust system

  • Electronic exhaust valves with key fob remote system

  • All necessary clamps and hardware


Specifications

  • Tubing: Full mandrel-bent T304 stainless steel

  • Valves: Electronic, remote-controlled

  • Weight Savings: 16.4 lb lighter than OEM

  • Finish: Brushed stainless steel



Shipping Policy

Shipping Information

Shipping costs vary by product size, weight, and destination. Please call us for shipping details and a quote before placing your order.

📞 Call 913-291-2027
info@americanfusionwheels.com

Free Local Pickup

Local pickup is always FREE at our shop:

American Fusion Wheels
12310 W 62nd Ter, Shawnee, KS 66216

Please wait for a "Ready for Pickup" notification before arriving.

Professional Installation Available

We professionally install everything we sell — wheels, tires, suspension, exhaust, lighting, audio, and more. When you pick up locally or have items shipped to our shop, our experienced technicians handle the installation so everything is done right.

Call us to schedule your installation appointment.

Freight & Large Item Shipping

Wheels, tires, and oversized items typically ship via freight truck.

  • Delivery Appointment: The freight carrier will call you to schedule a delivery window.
  • Signature Required: An adult must be present to inspect and sign for freight shipments.
  • Inspection Policy: You MUST inspect the pallet and items for damage BEFORE signing the delivery receipt. If items are damaged, note the damage on the receipt before the driver leaves, or refuse the shipment.

Contact Us

For shipping questions, call 913-291-2027 or email info@americanfusionwheels.com

Return Policy

At American Fusion Wheels, customer satisfaction is important to us. We strive to ensure you get the perfect fit for your vehicle. Please review our return policy carefully before making a purchase.

15-Day Return Policy

We accept returns within 15 days of the original purchase date under the following conditions:

  • Items must be unused, uninstalled, and in brand-new condition.
  • Items must be returned in their original packaging.
  • All accessories, hardware, and documentation must be included.
  • Proof of purchase (receipt or invoice) is required.

Non-Returnable Items

The following items are final sale and not eligible for return:

  • Mounted or installed wheels or tires (once a tire is mounted on a wheel, it is considered used).
  • Custom-ordered or special-order items (items not kept in our local inventory).
  • Clearance, "Open Box," or discounted items.
  • Electrical components (TPMS sensors, lighting, etc.).
  • Labor, installation, or service charges.

Wheels & Tires Fitment Responsibility

Customers are responsible for confirming proper fitment before purchase.

  • American Fusion Wheels is not responsible for returns due to incorrect fitment once items are mounted or installed.
  • If you are modifying your suspension (lifting or lowering), fitment requirements may change.
  • We strongly recommend contacting our team before purchasing if you are unsure about sizing, offset, or bolt patterns.

Return Shipping & Fees

  • Return shipping is the buyer's responsibility — you are responsible for arranging and paying for return shipping.
  • A 15% restocking fee will be deducted from your refund.
  • Original shipping charges (if any) are non-refundable.
  • Returns must be shipped using a trackable shipping method with insurance.
  • We are not responsible for items lost or damaged during return shipping.

Damaged or Incorrect Items

If you receive an item that is damaged or incorrect, please contact us within 48 hours of delivery with photos of the item and packaging. Do not attempt to install a damaged or incorrect part, as installation constitutes acceptance of the product. We will work with you to resolve the issue as quickly as possible.

Manufacturer Warranties

Many of the brands we carry offer specific warranties on finishes and structural integrity. If you experience a defect after the 15-day return window, we will gladly assist you in facilitating a warranty claim with the manufacturer.

How to Start a Return

To request a return authorization (RMA), please contact us:

American Fusion Wheels
12310 W 62nd Ter, Shawnee, KS 66216
913-291-2027
info@americanfusionwheels.com

Returns sent without prior authorization (RMA) will be refused.

Refund Processing

  • Approved refunds will be issued to the original payment method.
  • Refunds are typically processed within 5-7 business days of the item being inspected at our facility.
  • The 15% restocking fee will be deducted from your refund amount.
  • Shipping and handling charges are non-refundable.

In-Store Purchases

Return eligibility for in-store purchases follows the same policy and must be approved by management. Returns for in-store purchases must be brought back to our Shawnee, KS location.

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ShawneeOverland ParkLenexaOlatheLeawoodPrairie VillageMissionMerriamRoeland ParkDe SotoLee's SummitBlue SpringsIndependenceGardnerSpring HillGrandviewRaytownLibertyGladstoneKansas City KSKansas City MO

12310 W 62nd Terrace, Shawnee, KS 66216

Mon-Fri: 9:00 AM - 6:00 PM | Sat: 10:00 AM - 3:00 PM

Phone: 913-291-2027