Valvetronic Valved Sport Exhaust System for Porsche GT3/RS 991.1 / 991.2

$3,999.99
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Porsche 991 GT3 / GT3 RS – Valved Sport Exhaust System F1-Inspired • RSR Sound • 9000 RPM Symphony Overview This system is truly unparalleled in sound quality. After over a year and a half of dedicated research and development,...

CONFIGURATION: SPORT CATBACK SYSTEM ONLY

SPORT CATBACK SYSTEM ONLY

Material: Stainless Steel

Stainless Steel
Titanium
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Description


Porsche 991 GT3 / GT3 RS – Valved Sport Exhaust System

F1-Inspired • RSR Sound • 9000 RPM Symphony


Overview

This system is truly unparalleled in sound quality. After over a year and a half of dedicated research and development, we’ve engineered an exhaust experience that must be heard to be believed.

When Porsche introduced the DFI engine in the 991 GT3, many feared it would lack the soul of the legendary Mezger. But with a screaming 9,000 RPM flat-six, Porsche delivered in spades. Still, the factory setup leaves much to be desired when it comes to rawness and that elusive F1-style sound.

At Valvetronic Designs, we’ve crafted a system that elevates your GT3 experience. Featuring 2.5-inch piping, a large stamped cross-section X-pipe, and added loop sections to lengthen the exhaust path, this setup achieves the high-pitch motorsport tone enthusiasts crave. Combine it with our free-flow headers, and your 991 becomes one of the most exhilarating sounding machines on the road.


Sound Dynamics

This exhaust is designed to emulate the Porsche RSR race car:

  • Valves Open: An uncompromising sound experience with aggressive flames on upshifts and a crescendo that builds all the way to the 9000 RPM redline. Pure F1-inspired drama.

  • Valves Closed: Volume is tamed for comfort on long motorway drives or early-morning starts. Cabin drone is eliminated, keeping the experience refined even with valves shut.


Features

  • Full 2.5-inch system from front to back

  • Large stamped cross-section X-pipe for F1 tone

  • Added loop sections for enhanced sound pitch

  • Optional free-flow headers for maximum performance and sound quality

  • Vacuum-actuated exhaust valves with factory-like operation

  • Precision TIG welds for high strength and durability


Fitment

  • 2014–2019 Porsche 991 GT3

  • 2016–2019 Porsche 991 GT3 RS

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