911 S/T Dundon Motorsports performance upgrades placeholder

PORSCHE 911 S/T

Performance upgrades for the 911 S/T

Exhaust, suspension, brakes, wheels and lightweight-performance upgrades for the 911 S/T.
  • Engineered & tested in-house
  • Track-proven performance
  • Model-specific fitment guidance
  • Dundon 30-day guarantee

Start with your 911 S/T goal

Choose the right upgrade path

Pick the goal first, then shop 911 S/T 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.

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992 GT3 Touring Exhaust

12 products

The Porsche 992 GT3 Touring is a symbol of automotive refinement, combining speed, precision, and subtle elegance. To elevate its sonic presence and performance capabilities, we offer an exclusive collection of Exhaust Systems that are precision-crafted to enhance exhaust flow, optimize power output, and deliver a harmonious exhaust note, allowing your Porsche to resonate with unparalleled power and melodious elegance on every track.

Our Exhaust collection features a range of high-performance exhaust components, each meticulously designed to augment the sonic and performance attributes of your Porsche 992 GT3 Touring. Drawing upon our extensive racing background and deep knowledge of Porsche enhancements, we deliver exhaust systems that set the benchmark in quality, innovation, and acoustic excellence, meeting the elevated expectations of Porsche enthusiasts.

For a comprehensive exploration of our extensive suite of performance parts and upgrades for the Porsche 992 GT3 Touring, we cordially invite you to visit our 992 GT3 Touring Products. Here, you will encounter a diverse range of meticulously developed products designed to elevate every element of your vehicle’s performance and aesthetics, allowing you to savor the symphony of automotive excellence.

Dundon Motorsports is synonymous with innovation, passion, and commitment in the realm of Porsche enhancements. Our relentless pursuit of acoustic perfection and performance excellence inspires us to provide Porsche enthusiasts with unparalleled exhaust solutions that uphold the highest standards of quality and performance. Experience the harmonious fusion of power and elegance with Dundon Motorsports and let your Porsche 992 GT3 Touring echo with supreme sonic brilliance!

Engineered in-house

Proven where it matters.

Built for 911 S/T owners who want measured gains, cleaner setup choices, and confidence in the way the parts work together. Exact fitment still matters: brake package, wheel and tire choice, suspension setup, sound limits, emissions requirements, and intended use all shape the right build.

In-house design and testing

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.

Dyno, CFD & track validation

Measured & validated

Dyno, CFD & track validation

Power, airflow, thermal behavior and repeatability are checked before a part earns a place in the catalog.

Street manners, track intent

Street + track

Street manners, track intent

Sharper when pushed, calm enough to drive home. That balance matters on a 911 S/T.

Support from real Porsche specialists

Real support

Support from real Porsche specialists

Guidance from people who understand 992-generation fitment, setup tradeoffs, sound limits and real track use.

Customer Reviews

Overall rating: 5 / 5 from 438 reviews.

Excellent support and quality of parts for my 997.1 GT3 RS. The tolerances and quality of the parts are perfect

996 997 Rear UCA Dog Bone SET

Customer photo review of 718 GT4RS Street Header Package

Dundon never disappoints! Installation was a breeze and everything fit exactly like you would expect.

718 GT4RS Street Header Package

Allowed us to pass a 92db limit at Mont Tremblant in Canada

Nurburgring Quiet Tips

Allowed us to pass a 92db limit at Mont Tremblant in Canada

Nurburgring Quiet Tips

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.

992 Valve Set Retrofit Rev0

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

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.

Pre-Owned 991 GT3/RS Lifetime Center Muffler

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.

992 Muffler Strap Pair with Bolts

Customer photo review of Dundon Lifetime Quiet Muffler (no hardware or tips)

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.

Dundon Lifetime Quiet Muffler (no hardware or tips)

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.

992 Valve Set Retrofit Rev0

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.

Titanium Ultralight GT3/RS Muffler

Amazing system, when the valves are closed it’s basically oem, once you open them the car screams! Used with catless headers. Greta product!

OBD Killer

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

MCS 3-Way Suspension Package for 981/718 GT4

Worked as advertised. No codes with cat-less downpipes on my 992.

OBD Killer

Customer photo review of 992 GT3/RS Titanium Vented Tips

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!

992 GT3/RS Titanium Vented Tips

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.

Titanium Ultralight GT3/RS Muffler

EXPERT FITMENT HELP

Build the 911 S/T 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 911 S/T, 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 911 S/T upgrade path before committing to premium parts.