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SOUL Center Muffler Bypass Porsche 991 GT3 / GT3 RS (2014-2019)

SKU: POR.991GT3.CMB.SLT
Price
$1,675.00

Select Tip Style:

4" Slash Cut Single Wall

Select Tip Finish:

Signature Satin
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 Center Muffler Bypass replaces the restrictive factory center muffler on the 991 GT3/GT3 RS/911R with a free‑flowing, mandrel‑bent stainless piping path — unlocking the flat‑six’s natural voice for a deeper, more aggressive exhaust note and sharper throttle response. It retains the stock side mufflers (and valve system, if equipped), giving you a perfect balance of race‑car vocal character and daily‑driving usability. Ideal for owners who want a dramatic upgrade in exhaust tone and flow without going full “straight‑pipe” territory.

Fitment Notes

  • Fits all Porsche 991.1 / 991.2 GT3, GT3 RS, and 911R models (2014‑2019)

  • Direct bolt‑on installation — designed to replace the factory center muffler and mate to existing side mufflers and exhaust tips.

  • Does not remove or interfere with side mufflers or OEM valve system — retains factory exhaust valve functionality (if equipped), allowing “stock‑quiet” or “race‑loud” modes depending on valve position.

Included

  • Mandrel‑bent T304L stainless steel center bypass pipe assembly

  • All required mounting hardware and heavy‑duty clamps for secure connection to existing exhaust plumbing.

  • Fitting components to mate with OEM side mufflers and exhaust tips, ensuring a clean bolt‑on install.

Product Specs

  • Material: Mandrel‑bent T304L stainless steel tubing — corrosion‑resistant and built for high‑temperature strength.

  • Install Type: Direct bolt‑on — designed to use existing exhaust hangers, flanges, and side mufflers. 

  • Weight Savings: Approx. 11 lbs removed from the rear exhaust assembly compared to OEM center muffler.

  • Sound Character: Produces a deeper, more aggressive flat‑six exhaust tone with more presence under throttle and at idle; preserves manageable drone levels for daily driving due to retained side mufflers. 

  • Compatibility: Works with stock catalytic converters, side mufflers, valve system (where equipped), and factory exhaust tips — no special modification required. 

  • Warranty: Covered under SOUL’s standard Lifetime Warranty for street and track use.

Product Features

  • Enhanced Exhaust Tone & Character — By removing the restrictive center muffler and opening up the flow path, the naturally aspirated flat‑six gets a fuller, richer voice that lets the engine’s character shine.

  • Bolt‑On, OEM‑Friendly Fitment — No cutting, welding, or modifications needed — installs using factory mounts and connects cleanly to existing side mufflers and exhaust tips.

  • Balanced Performance & Usability — Retains side mufflers and valved exhaust system functionality, allowing the car to remain street‑friendly while delivering performance sound under throttle.

  • Weight Reduction & Flow Improvement — Shedding roughly 11 lbs from the rear improves throttle response and exhaust evacuation, giving the engine a little extra liveliness and letting it breathe more freely.

  • Lifetime Warranty & Proven Durability — Made from high‑quality stainless steel and fully backed by SOUL for street and track use, giving buyers confidence in long‑term reliability.

  • Good Foundation for Further Mods — The improved flow makes this bypass an excellent base for upgraded headers, rear exhaust, or a full exhaust build — unlocking more potential from your GT3.