Stainless System For  B8/G16 M850i

Alpina B8 / BMW G16 M850i Valved Sport Exhaust System

$3,999.99
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BMW G16 M850i Gran Coupe / Alpina B8 Valved Exhaust System Full T304 Stainless Steel System with OEM Valve Integration Overview The BMW G16 M850i Gran Coupe and Alpina B8 deliver incredible performance and refinement—but their stock exhaust note leaves...

CONFIGURATION: VALVED SPORT CATBACK SYSTEM

VALVED SPORT CATBACK SYSTEM

Material: T304 Stainless

T304 Stainless

Exhaust Tips: Reuse OEM

Reuse OEM
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Description

BMW G16 M850i Gran Coupe / Alpina B8 Valved Exhaust System

Full T304 Stainless Steel System with OEM Valve Integration


Overview

The BMW G16 M850i Gran Coupe and Alpina B8 deliver incredible performance and refinement—but their stock exhaust note leaves room for excitement.
Our Valvetronic Designs Valved Exhaust System is engineered specifically for this platform to enhance presence, sharpen tone, and add measurable performance gains.

This full system bolts directly to the OEM downpipes or can be paired with a free-flow front race pipe setup. Valve operation integrates seamlessly with the factory Sport and Sport+ driving modes, allowing instant sound control from the driver’s seat. As a direct OEM replacement, it installs with no modifications and is guaranteed to deliver a richer, more engaging soundtrack through the entire rev range.


Why It Works

  • Bespoke Platform Design: Engineered specifically for the G16 M850i and Alpina B8 for perfect fitment and optimized acoustics.

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

  • OEM Valve Integration: Retains factory valve functionality for quiet cruising or aggressive sound on demand.


Sound & Control

  • Valves Closed: Maintains refined, comfortable tone for daily driving.

  • Valves Open: Delivers a deeper, more aggressive note with added volume and character.

  • OEM Integration: Controlled via Sport and Sport+ modes—no extra remotes or wiring required.


Construction & Options

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

  • Weight Savings: 15.7 lb lighter than the factory exhaust.

  • Craftsmanship: Precision TIG welds for strength and a high-end finish.

  • Tips: Designed to reuse OEM tip outlets for a factory-fit appearance.


Fitment

  • 2018–2024 BMW G16 M850i Gran Coupe

  • 2018–2024 Alpina B8


Installation Notes

  • Direct replacement for the OEM exhaust system—no cutting or welding required.


What’s Included

  • Full T304 stainless steel valved exhaust system

  • Integrated OEM-style electronic valves

  • All necessary hardware and clamps


Specifications

  • Tubing: Full mandrel-bent T304 stainless steel

  • Valves: OEM-style electronic valves with factory integration

  • Weight Savings: 15.7 lb lighter than OEM

  • Tip Compatibility: Designed for OEM outlet reuse

PLEASE EMAIL US AT: CUSTOMERSERVICE@VALVETRONIC.COM WITH ANY QUESTIONS

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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Proudly Serving the Kansas City Metro

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