Optimized design that replaces the heavy and restrictive factory side mufflers for improved exhaust flow, increased sound and weight savings.
Utilizing premium Helical valves along with the addition of O2 bungs, Fabspeed’s Side Muffler Bypass Pipes provide the ultimate track solution for the 991 GT3 / GT3 RS. When accompanied with our new Long Tube Competition Headers, our Side Muffler Bypass Pipes allow the maximum amount of exhaust flow possible from the 991 GT3 / GT3 RS engine.
We chose to use Helical Valves on our 991 GT3 / GT3 RS track exhaust systems for their unprecedented quality – which have been proven by many OEM manufacturers such as McLaren, Ferrari, Lamborghini, and many more. Helical valves are an integral part of our Side Muffler Bypass pipes, opening and closing with precision to control the gas flow and optimizing engine back-pressure for improved performance. Helical’s extensive experience in high-volume OEM automotive applications has led to standard features such as an extremely durable pneumatic actuator, precision flat sealing faces inside the valve, stiffening ribs and high-temperature bearings at both ends of the butterfly spindle.
We relocated the O2 bungs from the collector of the headers to the Side Muffler Bypass Pipes in order to maintain factory-like functionality with our Long Tube Competition Headers – allowing them to read all cylinders while maximizing the performance of the collector. This design will replace our existing SMBP’s allowing you to upgrade to our Long Tube Race Header design at any time in the future.
Click Here For Install Instructions for Porsche Homelink Connection For Valvetronic Exhaust Control
| Year | Make | Model | Engine |
|---|---|---|---|
| 2014 – 2019 | Porsche | 911 GT3 | — |
| 2014 – 2019 | Porsche | 911 GT3 RS | — |
What we cover
Fabspeed Motorsport warrants to the Original Retail Purchaser that our manufactured Fabspeed Motorsport brand products are free from defects in materials and workmanship for the life of the product if the product is purchased through an authorized Fabspeed Motorsport reseller or directly from Fabspeed Motorsport.
For any Fabspeed Motorsport manufactured products with defects in materials or workmanship, we will repair or replace, at Fabspeed Motorsport’s discretion, the product at no cost to you for as long as you own and use it in the intended fashion. Fabspeed Motorsport is the final authority on determining eligibility of all warranty claims. Fabspeed Motorsport reserves the right to improve, modify, change parts and the design of our systems/components as we regularly engineer and improve our systems to continue to further enhance performance.
Optimized design that replaces the heavy and restrictive factory side mufflers for improved exhaust flow, increased sound and weight savings.
Utilizing premium Helical valves along with the addition of O2 bungs, Fabspeed’s Side Muffler Bypass Pipes provide the ultimate track solution for the 991 GT3 / GT3 RS. When accompanied with our new Long Tube Competition Headers, our Side Muffler Bypass Pipes allow the maximum amount of exhaust flow possible from the 991 GT3 / GT3 RS engine.
We chose to use Helical Valves on our 991 GT3 / GT3 RS track exhaust systems for their unprecedented quality – which have been proven by many OEM manufacturers such as McLaren, Ferrari, Lamborghini, and many more. Helical valves are an integral part of our Side Muffler Bypass pipes, opening and closing with precision to control the gas flow and optimizing engine back-pressure for improved performance. Helical’s extensive experience in high-volume OEM automotive applications has led to standard features such as an extremely durable pneumatic actuator, precision flat sealing faces inside the valve, stiffening ribs and high-temperature bearings at both ends of the butterfly spindle.
We relocated the O2 bungs from the collector of the headers to the Side Muffler Bypass Pipes in order to maintain factory-like functionality with our Long Tube Competition Headers – allowing them to read all cylinders while maximizing the performance of the collector. This design will replace our existing SMBP’s allowing you to upgrade to our Long Tube Race Header design at any time in the future.
Click Here For Install Instructions for Porsche Homelink Connection For Valvetronic Exhaust Control
| Year | Make | Model | Engine |
|---|---|---|---|
| 2014 – 2019 | Porsche | 911 GT3 | — |
| 2014 – 2019 | Porsche | 911 GT3 RS | — |
| Weight | 10 lbs |
|---|---|
| Configuration |
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