The 992 GT3 and 991.2 Speedster mark a drastic departure in exhaust configuration when compared with the last 15+ years of 911 GT3. Gone are the large side mufflers and nearly universal center muffler. The 992 platform has a gigantic and complicated center muffler...
The Porsche 992 GT3 is a marvel of engineering and a true embodiment of racing prowess. To complement its exceptional performance, our Brakes and Wheels Collection is meticulously designed to provide unparalleled braking efficiency and superior control, allowing you to navigate the tracks with precision and confidence.
Our range of brakes and wheels is crafted with utmost precision, utilizing advanced technology and high-quality materials to ensure optimal performance, durability, and safety. Whether you are a professional racer or a Porsche enthusiast, our collection is tailored to meet your unique needs and exceed your expectations.
Discover our extensive range of performance parts and upgrades by visiting our Porsche 992 GT3 Products. Here, you will find a plethora of options designed to enhance the aerodynamics, exhaust systems, and overall performance of your Porsche 992 GT3, allowing you to experience the thrill of racing with enhanced reliability and control.
At Dundon Motorsports, we are driven by a passion for racing and a commitment to excellence. Our mission is to empower Porsche owners to experience the pinnacle of automotive performance with our innovative solutions and expert insights. Dive into the world of high-speed excellence with Dundon Motorsports and let your Porsche 992 GT3 shine on the track with our premium brakes and wheels collection!
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.
The Porsche 992 GT3 is a symbol of racing heritage and engineering brilliance, and at Dundon Motorsports, we understand the desire to enhance this masterpiece to its utmost potential. Our collection of previously-owned parts offers a unique opportunity to acquire high-quality, reliable, and meticulously maintained components that promise to elevate the performance and driving experience of your Porsche 992 GT3.
Each piece in our previously-owned collection has been rigorously inspected and tested to ensure it meets our stringent standards of quality and performance, allowing you to invest with confidence and peace of mind. From aerodynamics to exhaust systems, our range encompasses a variety of components designed to optimize every aspect of your vehicle's capabilities.
Explore our comprehensive 992 GT3 Products for an extensive selection of top-tier performance parts and upgrades, meticulously crafted to enhance the speed, precision, and aesthetics of your Porsche 992 GT3, allowing you to experience the epitome of automotive excellence.
At Dundon Motorsports, our commitment to quality, innovation, and the spirit of racing drives us to provide Porsche enthusiasts with unparalleled solutions that redefine the boundaries of automotive performance. Immerse yourself in a world of automotive perfection with Dundon Motorsports and let your Porsche 992 GT3 experience the zenith of performance and reliability with our premium previously-owned collection!
Engineered in-house
Proven where it matters.
Built for owners who want measured gains, cleaner setup choices, and confidence in the way the parts work together. For the refreshed GT3, exact fitment still matters: transmission, brake package, front axle lift, Weissach equipment, wheels, tires and local sound or emissions rules all shape the right build.
Built in-house
In-house design and testing
Dundon parts are developed around the car as a system, so exhaust, aero, suspension and brake choices can work together.
Measured & validated
Dyno, CFD & track validation
Power, airflow, thermal behavior and repeatability are checked before a part earns a place in the catalog.
Street + track
Street manners, track intent
Sharper when pushed, calm enough to drive home. That balance matters on a 9,000 rpm GT3.
Real support
Support from real Porsche specialists
Guidance from people who understand 992-generation fitment, setup tradeoffs, sound limits and real track use.
VIDEO PROOF
GT3 proof videos
992 GT3 exhaust dyno proof: stock vs Dundon
992 GT3 aero and suspension proof at Nurburgring
Dundon GT3 exhaust sound proof
Customer Reviews
Overall rating: 5 / 5 from 438 reviews.
Great experience
Thanks for the speedy turn around
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!
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!
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.
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.
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.
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.
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
The new Dundon Ti tips are epic. Changed up the look of my car and gives it an aggressive look. The tips look “heavier”, but they are full printed Ti and extremely light. Cannot wait to see the color come in!
Incredible sound. I installed a full Dundon system on a 992.1 GT3 Touring.
- 992 GT3 Street Header Complete Exhaust Package (non-EU)
- Titanium Ultralight Muffler - Loud
- Loud Inserts for Dundon Titanium GT3/RS Muffler
- Vented Tip option
Sounds normal stock until it doesn't... Cold start won't wake the neighbors but as soon as I put it in sport mode, things change. Also in normal mode if I go above three or 4000 RPMs the valves open up and all hell breaks loose but in a good way. Higher pitch Sound no drowning very solid no regrets. Take that card to 6 to 9000 and we have problems in a good way.
I was concerned about putting the loud inserts in but after talking to the guys over there, they said they have not had one client take them out after they received the install. Glad I have them. It's not too loud and it's got a great pitch to it.
Build the 992.2 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 car, tracks, sound limits and goals.
Goal-based setupStreet, HPDE, time trial, sound-limited circuits or mixed-use builds.
System fitmentExhaust, aero, suspension, brake, wheel and tire choices checked together.
Confidence before checkoutA clearer 992.2 GT3 upgrade path before committing to premium parts.
Will Modifying the Exhaust on my 992.1 GT3 car void my warranty?
No. We have a number of Porsche Dealerships in the USA and Canada that purchase exhausts from us, and in almost 10 years, there have been no issues with Warranty coverage.
2
What are Dundon Headers made from?
Dundon Headers are made from 321 stainless steel. This was chosen for its better high-temperature corrosion resistance (yes, 304 rusts from the inside out in exhaust applications). 321 provides superior fitment due to less stress in the material during welding from 321’s greater high temperature performance.
3
Do Dundon 992 Street Headers include Valves and Catalysts?
Yes! Dundon Street Headers come complete with Valves and Catalysts included in the price, as well as all hardware and gaskets you need (you reuse the stock exhaust manifold gaskets). Be sure when comparing to other companies products that you include headers, valves and catalysts in the comparison for pricing…
4
What are your Mufflers made from?
Dundon uses 3 different materials for rear mufflers.
Lifetime Mufflers use 321 Stainless steel.
Mini Cracks and Crack Pipes use Inconel for light weight and thin wall specs.
Ultralight Ti Mufflers are carefully designed and constructed of Titanium for lightweight and higher pitched sound. Our Titanium mufflers have a fully internally reinforced design, with careful attention paid to fabricating without oxidizing the Titanium. (colors are oxidation, yes rainbows are pretty, but you don’t want to see rainbow welds on your exhaust!).
5
Do Dundon 992 Street Header exhaust packages drone?
If you want Drone free cruising, you need a muffler. Drone comes from a frequency in the exhaust that excites the air in the cabin of the car to resonate (think of a speaker box). If you want to avoid drone you need to change the frequency, this is why we keep valves on our exhausts, as the way you change the frequency is to push the exhaust through a smaller, longer tube (like a pipe organ) so that you move the frequency away from the resonant frequency.
Mini Crack pipes drone a bit
Full Crack Pipes Drone a lot.
6
What exhaust system is best for me?
You first have to ask how you will use the car: Only used on Track with no sound restrictions? Taking Grandma to Brunch? Live in a Condo with many “Karen’s” Choose to ensure you can live with it.
Street Headers are the basis of all of our exhaust choices, from there you need to decide what muffler you want to run
Lifetime Loud Muffler: Great scream with a little more bass at idle
Inconel Mini Crack: More volume, some drone and an RSR race car scream at high RPM
Ultralight Titanium Muffler: Great Scream, Higher pitch (or lack of low frequencies)
Add Loud Inserts for Mini crack level of loud but still with no drone during cruise.
7
Do You Make Quiet Tips to meet sound restricted Track dB requirements?
If you need to pass sound at your local tracks, we offer quiet tips for occasional use that offer 7-8dB sound reduction.
8
How do Dundon Headers Make Power?
Pressure Waves and harnessing the strength and timing of the waves as they go down the tube, expand and reflect back to the head. “Flow” and “Backpressure” are words used by people who don’t know what they’re doing
9
Do Dundon Intakes for 992 GT3 Make Power?
Yes and lots of it! Please check the individual kits for specifics, but some combinations make as much as 70+whp!
10
Do you sell replacement filters for your intakes?
Yes we do!
11
Will Dundon 3-way dampers hurt the quality of my 992 ride on the street?
Not at all, in fact your street ride will improve with the Dundon-specific valving used in our custom MCS 3-way kits. Supple, supported and more grip!
12
I drive my 992 GT3 on the street and on the track, should I have a track alignment or a street alignment?
The tires wear significantly more at the track than they do on the street. This is why we generally will recommend a track alignment for most cars that are tracked (this also covers mountain carving cars). Unless you’re commuting 1000’s of miles between track days then you will have more wear from the track than you will from the street.
13
Will Dundon suspension arms make my 992 gt3 loud and clunky like a cup car?
No way! There will be a little bit more noise when you remove the rubber from your suspension, but it won’t make the car loud and clunky.
Choosing a selection results in a full page refresh.
The 992 GT3 and 991.2 Speedster mark a drastic departure in exhaust configuration when compared with the last 15+ years of 911 GT3. Gone are the large side mufflers and nearly universal center muffler. The 992 platform has a gigantic and complicated center muffler...