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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.

Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging. All returns are subject to a restocking fee based on item and package condition. Buyer is responsible for paying for return shipping costs. If you need a return label, we will email you a return label and deduct cost from refund. Original shipping costs are not refundable. Special order items are not eligible for return.

Cancellation Policy
In order to cancel your order you must email within 24 hours of placing your order or before your order has shipped, whichever occurs first. Special order items are not eligible for cancelation.

Exchange Policy
We have a 30-day exchange policy, which means you have 30 days after receiving your item to request an exchange. To be eligible for an exchange, your item must be brand new in box. Buyer is responsible for paying all shipping costs to exchange product.

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.