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SOUL Valved Side Muffler Bypass Porsche 997 GT3 / GT3 RS (2006-2011)

SKU: POR.997GT3.SMBV
Price
$2,095.00
Currently Backordered - You can still place your order and we'll ship your order as soon as the product is back in stock!

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Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

FAQ

Shipping Information
For items that are in stock, purchases made after 9am EST will be usually be shipped out in the next 1-2 business days. Please inquire to confirm lead times if you have specific time constraints. Orders will be sent via signature required at our discretion unless otherwise requested. 

International Shipping
Any and all customs duties, taxes, import fees, and/or tariffs assessed in connection with the purchase shall be the sole responsibility of the customer/end user.

Cancellations / Returns

Original sales receipt or order number must accompany all return requests.

Forza Motor Works accepts returns for exchange, store credit, or refund within fourteen (14) calendar days of the delivery date, subject to the terms and conditions below. After fourteen (14) calendar days, all sales are final unless otherwise approved in writing by Forza Motor Works.

To be eligible for return, products must be in new, unused, unaltered, and resalable condition, including all original packaging, instructions, hardware, documentation, and accessories. Returned items must not show any signs of installation, use, wear, damage, modification, painting, coating, or alteration of any kind.

The following items are non-returnable and non-refundable:

• Special-order products
• Custom-built or made-to-order products
• Products manufactured to customer specifications
• Custom color or finish products
• Manufacturer-direct-shipped products designated as non-returnable
• Products with extended lead times, including but not limited to headers, exhaust systems, wheels, and other special-order performance products
• Any item specifically identified on the product page as non-returnable

Orders for special-order, custom-built, made-to-order, vehicle-specific, or manufacturer-direct-shipped products may not be canceled once the order has been submitted to the manufacturer.

If an item is received damaged during shipping or was shipped incorrectly by Forza Motor Works, Customer Support must be contacted within forty-eight (48) hours of delivery. Claims for shipping damage must include clear photographs of the product, packaging, shipping box, and shipping label at the time of unpacking.

Products determined by Forza Motor Works to have been incorrectly shipped may qualify for replacement, store credit, or refund at our sole discretion. Manufacturer defects are subject to the applicable manufacturer's warranty policies and procedures. Forza Motor Works does not provide any separate product warranty unless expressly stated in writing.

All returns must be authorized prior to shipment and must be assigned a Return Merchandise Authorization (RMA) number. The RMA number must be clearly displayed on the outside of the return package. Returns received without an authorized RMA number may be refused or denied credit.

To obtain a Return Merchandise Authorization (RMA), please contact:

Forza Motor Works
Email: info@forzamotorworks.com

All refunds, exchanges, and store credits are contingent upon inspection and approval of the returned merchandise. Forza Motor Works reserves the right to deny any return that does not comply with this policy.

Approved returns may be subject to a restocking fee of up to twenty five percent (25%) of the purchase price. Original shipping charges are non-refundable. Customer is responsible for all return shipping costs unless the return is the direct result of an error made by Forza Motor Works.

FITMENT, INSTALLATION & PRODUCT USE

Customer is responsible for verifying vehicle compatibility, fitment, and intended use prior to installation. While Forza Motor Works makes reasonable efforts to provide accurate product information and fitment guidance, final responsibility for compatibility rests solely with the customer.

Products that have been installed, test-fitted, modified, painted, coated, damaged, or otherwise used are not eligible for return.

Many aftermarket performance products are intended for off-road, racing, or competition use only and may not be legal for use on public roads in all jurisdictions. Customer is solely responsible for determining compliance with all applicable federal, state, and local laws and regulations.

LIMITATION OF LIABILITY

FORZA MOTOR WORKS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL DAMAGES ARISING FROM THE PURCHASE, INSTALLATION, USE, MISUSE, FAILURE, OR INABILITY TO USE ANY PRODUCT SOLD BY FORZA MOTOR WORKS.

FORZA MOTOR WORKS SHALL NOT BE RESPONSIBLE FOR LOSS OF TIME, LOSS OF REVENUE, LOSS OF PROFITS, LOSS OF VEHICLE USE, TOWING CHARGES, RENTAL VEHICLE COSTS, STORAGE FEES, DIAGNOSTIC FEES, INSTALLATION COSTS, REMOVAL COSTS, ALIGNMENT CHARGES, TUNING FEES, SHIPPING EXPENSES, FINES, PENALTIES, PROPERTY DAMAGE, VEHICLE DAMAGE, OR ANY OTHER INCIDENTAL OR CONSEQUENTIAL LOSS OR EXPENSE.

TO THE MAXIMUM EXTENT PERMITTED BY LAW, FORZA MOTOR WORKS' TOTAL LIABILITY FOR ANY CLAIM ARISING FROM THE PURCHASE OR USE OF A PRODUCT SHALL NOT EXCEED THE AMOUNT PAID FOR THE SPECIFIC PRODUCT GIVING RISE TO THE CLAIM.

By placing an order with Forza Motor Works, the customer acknowledges and agrees to all terms and conditions contained herein, including all return, exchange, warranty, and limitation-of-liability provisions.

Product Description

The SOUL Valved Side Muffler Bypass Pipes replace the heavy, restrictive factory side‑muffler sections with a lightweight, high‑flow stainless system — shedding roughly 35 lb and dramatically reducing heat soak. With factory‑style valves retained, you get a controlled, street‑friendly exhaust tone when closed, and unlock a louder, exotic, track‑inspired soundtrack when opened — offering the best of both worlds for daily driving or track use. It’s a bolt‑on solution engineered for fast installation and improved exhaust performance, while preserving valve‑controlled flexibility.

Fitment Notes

  • Compatible with all Porsche 997 and 997.2 GT3 / GT3 RS (2006–2011) models. 

  • Direct bolt‑on install — uses OEM mounting points, flanges and connections; no cutting or fabrication needed. 

  • Fully valved design retains factory PSE-style control — exhaust flow is switchable between “quiet / street‑minded” and “full volume / performance” modes.

Included

  • Full set of stainless‑steel side bypass pipes (left + right), with 3″ diameter mandrel‑bent tubing and factory‑style valve assemblies. 

  • Flexible “bellows” sections to absorb vibration and thermal expansion under load — improving durability under street or track use. 

  • All required hardware and gaskets for a straightforward bolt‑on installation using existing exhaust hangers and flanges.

Product Specs

  • Material: T304L stainless steel, mandrel‑bent 3.0″ diameter primary piping, approximately 0.065″ wall thickness. 

  • Weight savings: ~ 35.4 lbs compared to factory side mufflers (stock ~44.9 lbs vs aftermarket ~9.5 lbs).

  • Valve system: High‑quality valves operate like OEM — allowing exhaust path to switch between quiet (valves closed) and full‑flow (valves open) modes.

  • Piping layout: Large‑diameter straight‑through bypass for maximized exhaust flow to reduce back pressure and promote throttle response.

Product Features

  • Major Weight Reduction & Heat Management — Removing heavy muffler units and heat‑soak zones improves rear-end weight balance, reduces exhaust‑bay temperatures, and helps keep rear tires cooler under track use.

  • Switchable Exhaust Character — With the valves closed you retain a moderate, street‑friendly tone; open the valves and unleash a fuller, more exotic GT3‑style exhaust note.

  • Enhanced Exhaust Flow — 3″ mandrel‑bent piping reduces back‑pressure and supports better exhaust scavenging, which can improve throttle response and exhaust efficiency.

  • Durable, Track-Ready Construction — Premium stainless steel and flex‑bellows joints add reliability under repeated thermal cycling, making it suitable for both street driving and aggressive track sessions.

  • Bolt‑On, OEM‑Compatible Setup — Uses factory mounting points, valve control, and exhaust outlets — making installation and reversion simple.