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Valvetronic Valved Sport Exhaust System for Porsche GT3/RS 991.1 / 991.2
SPORT CATBACK SYSTEM ONLY / Stainless Steel
$3,999.99
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SKU:
POR.991.GT3.VSES.BR
Valvetronic Valved Sport Exhaust System for Porsche GT3/RS 991.1 / 991.2
Free Shipping to the 48 Contiguous States
$3,999.99
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:
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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.
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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
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Full 2.5-inch system from front to back
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Large stamped cross-section X-pipe for F1 tone
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Added loop sections for enhanced sound pitch
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Optional free-flow headers for maximum performance and sound quality
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Vacuum-actuated exhaust valves with factory-like operation
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Precision TIG welds for high strength and durability
Fitment
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2014–2019 Porsche 991 GT3
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2016–2019 Porsche 991 GT3 RS
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
- Brushed T304 stainless steel
- Full 2.5-inch system from front to back
- Vacuum-actuated exhaust valves with factory-like operation
Warranty Coverage
All products manufactured by Valvetronic Designs are guaranteed to be free from manufacturing defects in materials and workmanship at the time of sale. A manufacturing defect is defined as any characteristic of the product that arises during the manufacturing process which impairs its usability for the purposes for which it was designed and manufactured.
Products are guaranteed to fit and function as designed on their intended vehicle application, provided the vehicle has not been modified or incurred structural damage. Sound or tone is not a warrantable or returnable issue, as exhaust sound is subjective and not considered a defect.
Warranty Periods
- 304 stainless steel and titanium exhaust tubes and welds carry a Lifetime of Ownership limited warranty against defects in workmanship or material, including penetrating rust.
- Mufflers and resonators carry a 3-year limited warranty against defects in workmanship or material, including penetrating rust.
- Catalysts are warranted to conform to EPA emission testing and OBDII compatibility criteria for 25,000 miles from the date of installation, whichever occurs first.
- Catalytic converter external shells, including end pipes, are warranted against corrosion and defective welding for 5 years or 50,000 miles from the date of installation, whichever occurs first.
- Vacuum pots, electronic remotes, and mechanical valves are covered by a 1-year limited warranty.
- Electronics, including 12V vacuum pumps, RF modules, and controllers, are covered by a 1-year limited warranty.
- Tip finish is covered by a 1-year limited warranty.
Warranty Terms
- Warranty coverage begins on the purchase date and applies only to the original purchaser.
- This warranty is not transferable or assignable at any time.
- Discoloration caused by heat, salt, brine, or other road treatments is not covered.
- Tip finish discoloration or damage caused by heat, chemicals, lack of maintenance, road salt, brine, other road treatments, road debris, or misuse is not covered.
Porsche 991 GT3 / GT3 RS – Valved Sport Exhaust System, with valve controller and wiring harness
Overall rating: 5.0 / 5 from 4 reviews.
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Reviews
Great system
"True RSR sound - will buy again for my Ferrari 458"
prefer this over my previous setup
"LOVING THIS SETUP! needed to have valves Because my previous Dundon set up was far to obnoxious at low RPMs and I can’t say enough good things about this set up. I got all the same sound that I had with the Dundon, but with the PSE off it’s like it’s a stock GT3. Very happy with Valvetronic"
She rips!
"Holy Moly, be prepared because this exhaust is LOUD. We got the system with the free flow headers and it RIPS. In tunnels it blows my ears out. Very happy."
Q&A
- Hello - does the cat back system retain the factory catalytic converter? e.g CA smog legal?
- Correct, the cat-back does not touch the factory cats
