PORSCHE 911 GT3 (991.2)
Performance upgrades for the 991.2 GT3
Exhaust, aero, suspension, brakes, wheels and track-focused upgrades for the 991.2 GT3.
- Engineered & tested in-house
- Track-proven performance
- Model-specific fitment guidance
- Dundon 30-day guarantee
991.2 GT3 Best Sellers
Start with your 991.2 GT3 goal
Choose the right upgrade path
Pick the goal first, then shop 991.2 GT3 parts that match how the car is actually used.
Sound
3 hand-picked products
I want sound, response, and less rear weight
Start with the exhaust path: freer flow, sharper response, retained drivability, and the right sound target for street miles or sound-restricted track days.
First mods
3 hand-picked products
I want the best first 991.2 GT3 mods
Compare the proven first steps owners usually ask about: exhaust character, aero balance, alignment support, brake confidence, and track-day setup.
Track
3 hand-picked products
I want more repeatable track sessions
Focus on the pieces that help the car stay predictable: alignment range, chassis control, brake support, wheel clearance, tire consistency, and sound compliance.
Shop by collection
Browse 991.2 GT3 upgrades by collection
Scan curated 991.2 GT3 upgrade collections without leaving the landing page.
991.2 GT3 Exhaust
19 products-
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Pre-Owned 991 GT3/RS Street Header Lifetime Muffler Power Package
From $13,675.50 $12,195.00 -
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At Dundon Motorsports, we take pride in crafting exhaust solutions that are specifically engineered for Porsche enthusiasts. Our exhaust components are manufactured using high-quality materials and precision engineering, resulting in lightweight systems that deliver optimal power gains. Whether you're a professional racer or a passionate Porsche owner, our exhaust upgrades are designed to exceed your expectations.
Explore our carefully curated selection of exhaust enhancements for the Porsche 991.2 GT3, including headers, mufflers, and more. Each component is designed to optimize exhaust flow, improve power delivery, and enhance the overall performance of your 991.2 GT3. With Dundon Motorsports, you can expect nothing but top-tier quality and performance.
For a comprehensive range of performance parts dedicated to the Porsche 991.2 GT3, we invite you to visit our dedicated 991.2 GT3 Products. Here, you'll find an extensive collection of components and accessories tailored to elevate your Porsche's performance on and off the track.
Dundon Motorsports is your trusted partner in Porsche performance upgrades, blending years of racing expertise with technical excellence. Experience the thrill of driving your Porsche 991.2 GT3 with our high-performance exhaust solutions.
991.2 GT3 Aerodynamics
5 products
Welcome to Dundon Motorsports, where passion for Porsche meets unparalleled performance. Introducing our elite Aerodynamics collection exclusively tailored for the Porsche 991.2 GT3. As dedicated racers and Porsche connoisseurs, we recognize the essence of aerodynamic perfection. Every curve, every edge, and every design element of our products is engineered to optimize airflow, reduce drag, and enhance downforce.
Navigate through our comprehensive Porsche 991.2 GT3 collection and discover the epitome of aerodynamic mastery. Whether you're aiming for record-breaking lap times or seeking that extra edge on the open road, our Aerodynamics collection promises to transform your Porsche into a force of nature.
Why Dundon Motorsports for Your 991.2 GT3 Aerodynamics?
- Precision: A decade of Porsche expertise ensures that our aerodynamic solutions are second to none.
- Performance: Crafted for racers by racers, our products promise to elevate your Porsche's track dynamics.
- Innovation: Stay ahead of the curve with our cutting-edge aerodynamic designs and materials.
Dive into the world of performance parts for Porsche 991.2 GT3 and redefine your driving experience with Dundon Motorsports.
991.2 GT3 Suspension
15 products
At Dundon Motorsports, we understand the critical role that suspension plays in achieving superior handling, cornering, and control on the track. Our Suspension Collection includes an extensive range of high-quality suspension upgrades, from coilovers to sway bars, all engineered to provide you with the ideal balance of comfort and performance.
Each suspension package we offer is meticulously crafted to the highest standards, using advanced materials and technology for maximum effectiveness. Whether you're looking to fine-tune your Porsche 991.2 GT3's ride height, adjust damping characteristics, or improve overall chassis rigidity, our collection has the solutions you need.
For a comprehensive selection of performance parts dedicated to your Porsche 991.2 GT3, be sure to explore our dedicated 991.2 GT3 Products. Here, you'll find an extensive array of products covering exhaust, aerodynamics, power packages, and more.
Dundon Motorsports is your trusted partner in enhancing your Porsche 991.2 GT3's on-track performance to its fullest potential. With our commitment to excellence in Porsche racing, we're here to provide you with the expertise and components needed to unlock the true potential of your Porsche.
991.2 GT3 Braking & Wheels
14 products
Dundon helps your 991.2 GT3 make more power, now we can help it slow as good as it goes! Take a look here to see the best brakes and wheel options for your GT3.
991.2 GT3 Power Packages
5 products-
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D3 Street Header/93mm Intake Kit/Optional Lifetime Muffler Power Package (2018-2019 991.2 GT3)
From $18,260.00 $17,405.00 -
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Pre-Owned 991 GT3/RS Street Header Lifetime Muffler Power Package
From $13,675.50 $12,195.00
Unleash the full potential of your Porsche 991.2 GT3 with Dundon Motorsports' Power Packages Collection. Our expertly curated packages are designed to elevate your Porsche's performance to new heights, whether you're tearing up the track or enjoying the open road.
At Dundon Motorsports, we understand that Porsche enthusiasts demand the utmost in precision and power. Our Power Packages include a range of carefully selected components, including exhaust systems, tuning solutions, and more, all meticulously engineered to enhance your Porsche's horsepower, torque, and overall driving experience.
Our exhaust systems are crafted with precision and passion, delivering a symphony of sound and performance that's second to none. Paired with our tuning solutions, these packages optimize your Porsche's engine management system to extract every ounce of power and responsiveness from your GT3.
With Dundon Motorsports' Power Packages, you'll not only experience a substantial boost in performance but also a more thrilling and engaging driving experience. Whether you're looking for that extra edge on the track or simply want to enjoy the exhilaration of a more powerful Porsche on the road, our Power Packages have you covered.
For a comprehensive range of performance parts dedicated to the Porsche 991.2 GT3, we invite you to visit our dedicated 991.2 GT3 Products. Here, you'll find an extensive collection of components and accessories tailored to elevate your Porsche's performance on and off the track.
Dundon Motorsports is your trusted partner in Porsche performance upgrades, combining years of racing expertise with technical excellence. Elevate your Porsche 991.2 GT3's track and road performance with our precision-crafted Power Packages.
Tools & Safety
16 products
Navigate through a selection of products that are not only designed to safeguard but also to empower. From robust tools that ensure your vehicle is always performing at its best, to safety gear that shields and secures, every product is crafted with the utmost precision and care.
As experts and enthusiasts in the world of motorsports, we understand that the thrill of the drive should always be in harmony with the assurance of safety and the right tools at your disposal.
From precision tools that ensure your vehicle is tuned to perfection, to safety gear that protects and enhances your driving experience, every item is a testament to our commitment to quality, safety, and performance.
As experts and enthusiasts in the world of motorsports, we understand that the thrill of the drive should always be in harmony with the assurance of safety and the right tools at your disposal.
From precision tools that ensure your vehicle is tuned to perfection, to safety gear that protects and enhances your driving experience, every item is a testament to our commitment to quality, safety, and performance.
991.2 Pre-Owned
6 products-
Pre-Owned 991 GT3/RS Street Header Lifetime Muffler Power Package
From $13,675.50 $12,195.00 -
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At Dundon Motorsports, we understand that the pursuit of performance is a journey, and sometimes, the best parts have a story to tell. Our previously-owned collection showcases premium products that have been carefully inspected, tested, and approved by our experts, ensuring they meet our high standards of quality and performance.
Whether you're seeking exhaust enhancements, aerodynamic upgrades, suspension improvements, or power packages, our previously-owned offerings provide an opportunity to elevate your Porsche 991.2 GT3's performance without compromising on quality. Each product in this collection has been thoroughly vetted to guarantee that it can deliver the top-tier performance you expect from Dundon Motorsports.
For a comprehensive selection of performance parts dedicated to your Porsche 991.2 GT3, we invite you to explore our dedicated 991.2 GT3 Products. Here, you'll discover an extensive range of new and pre-owned products, allowing you to tailor your Porsche to your exacting standards.
Dundon Motorsports is your trusted partner in unleashing the full potential of your Porsche 991.2 GT3 on the road and track. With our expertise in Porsche racing and high-performance upgrades, we provide both the knowledge and components required to enhance your driving experience.
Customer Reviews
Overall rating: 5 / 5 from 445 reviews.
!Great exhaust system! Unbelievable quiet inside the car and superb sound outside. Power gains to be tested soon in track. Regards 🏁🙌🏻
Dundon Motorsports products are the pinnacle of engineering and quality. From the fit and finish, to the incredible packaging and quick shipment of products, you won't be disappointed. As far as customer support, there really is no comparison since they are the leaders in assisting their clientele achieving complete satisfaction.
The Titanium muffler and header package has taken my 3RS to a new level. I have often received comments at the track saying that my car is the best sounding car at the track.
Thank you Charles, Jamie, Ted and the crew at Dundon for taking such great care of me and your customers. You guys are a class act and have always gone above and beyond. Much appreciated! Nick
Excellent product!
Fast shipping, great product, got labor day discount applied! Gt3 can finally breathe without the particulate filter.
Everything went great with the installation
Great experience Thanks for the speedy turn around
it was very nice kit
Dundon Motorsports Suspension Setup Package for 991 Turbo/Turbo S
Excellent support and quality of parts for my 997.1 GT3 RS. The tolerances and quality of the parts are perfect
Amazing! Love the sound and the added throttle response—it’s like the GT3 just woke up and is ready to play. Absolutely transformed the driving experience. Great job, Dundon team!
Dundon never disappoints! Installation was a breeze and everything fit exactly like you would expect.
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Allowed us to pass a 92db limit at Mont Tremblant in Canada
Allowed us to pass a 92db limit at Mont Tremblant in Canada
Perfect fit…would recommend!
Great experience. The spacer kit was exactly what we needed
Good Fitment! Thanks again.
Thank you guys! System turned out great. Sounds amazing. Tech support from Ted and Charlie was first class! They really went above and beyond! We really appreciate your partnership.
I received the Accessport device very quickly from Dundon, and found the process of uploading the ECU maps to be a simple and smooth process. I previously had OTS tunes from Softronic and Cobb, but I have to say.. what a remarkable change the custom one from Dundon has over the others. The support from both Charles and Jamie has been great. They provided useful context and slight revisions to the tune based on performance data logs that are captured by the device. The tuning is still ongoing, but I’m very pleased with the results thus far. Highly recommend!
981 GT4 Cayman, 991.1 Carrera/S, Cobb Accessport with Dundon Pro Tune
Great quality! Just print instructions and make sure to print template at 100% . 67 lb paper is perfect for template..
Amazing customer service and the most amazing sounding exhaust ever. Discovered a hole in the muffler of my GT3 and they found a replacement and had it to me the next day so we could install it for upcoming weekend HPDE. Fits perfectly and sounds so much better than the Porsche stock muffler. Can’t thank Dundon enough for their product and service backing it up.
These are the same as OEM, but much more convenient when they arrive with the exhaust so I don't have to run to the dealership and grab them.
We had a combination of the Dundon headers with the crack pipe exhaust and decided we needed a change after getting black flagged at our local track for blowing clear through the noise ordinance. Dundon's quiet muffler reduced our noise to an acceptable level and still sounds great. The quiet muffler removed any drone we had with the crack pipe and made driving the car much more reasonable. If we need to reduce sound levels more, we can easily add the quiet tips - it's nice to have modularity.
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This is a fantastic product that saves time and makes it easy for an individual to change their wheels. The custom case is a nice added value.
Quality is great and fits like OEM!
Carbon Wind Deflectors for 992 Carrera, GT3, GT3RS and Turbo
VERY FAST SHIPPING AND NICE PRODUCT TKS AGAIN GUYS
Perfect fit and easy installation. Noticeable performance improvement on track, especially in longer straights. 3-4 mph higher speed on back straight at Sebring…and sound great.
Perfect balance of sound and performance. My car walks away from other 992 GT3s on the straights and sounds spectacular. Noticeable difference in on track performance.
Awesome
Great solution to Wind buffeting done in style
Carbon Wind Deflectors for 992 Carrera, GT3, GT3RS and Turbo
Great quality matching OEM carbon fiber
Amazing system, when the valves are closed it’s basically oem, once you open them the car screams! Used with catless headers. Greta product!
Great customer service and people who stand by their product 100%
Perfect fitment and adjustability for any occasion, track and street compatible
Fantastic product, customer service, and even packaging. Dundon is a super high quality product and I think the best in the business (I have had other systems from other companies). Easy decision for any Porsche.
992 GT3/RS Catalytic Converter Pair for Dundon Street Headers - Foundational
Step 1: Receive Package: Complete. No visible damage. Step 2: Arrange a shop to install: In Progress. Step 3: Drive it hard!: ….can’t wait!! Thanks to the Dundon team for their assistance & support to answer my questions and help tailor the kit to my needs. Looking forward to Step 3. BG
It’s been awesome so far!
10/10 would recommend. The sound is incredible from how loud it is to the tone. I wish I did this sooner.
EXPERT FITMENT HELP
Build the 991.2 GT3 around the way you actually drive.
Not sure whether to start with exhaust, aero, suspension, brakes, wheels or a full track-day setup? A Dundon specialist can help match the upgrade path to your 991.2 GT3, tracks, sound limits and goals.
- Goal-based setup Street, HPDE, time trial, sound-limited circuits or mixed-use builds.
- System fitment Exhaust, aero, suspension, brake, wheel and tire choices checked together.
- Confidence before checkout A clearer 991.2 GT3 upgrade path before committing to premium parts.
- Choosing a selection results in a full page refresh.