981 GT4 Clubsport Dundon Motorsports performance upgrades placeholder

PORSCHE 981 GT4 CLUBSPORT

Performance upgrades for the 981 GT4 Clubsport

Power, exhaust, aero, suspension, brake and wheel upgrades for the Porsche 981 GT4 Clubsport.
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  • Engineered & tested in-house
  • Track-proven performance
  • Model-specific fitment guidance
  • Dundon 30-day guarantee

981 GT4 Clubsport Best Sellers

Start with your 981 GT4 Clubsport goal

Choose the right upgrade path

Pick the race-use goal first, then shop 981 GT4 Clubsport parts that match how the car is actually run.

Power 3 hand-picked products

I want the 981 GT4 Clubsport power path

Start with the D4 Clubsport power package and race headers, then confirm tuning and sound target.

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Browse 981 GT4 Clubsport upgrades by collection

Scan curated 981 GT4 Clubsport upgrade collections without leaving the landing page.

Confirm exact race-car fitment before ordering

Engineered in-house

Proven where it matters.

Built for 981 GT4 Clubsport owners and teams who want measured upgrades, cleaner setup choices and confidence in the way parts work together. Exact fitment still matters: Clubsport specification, engine package, brake setup, wheel and tire choice, sound limits, spares strategy 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 Porsche platforms as complete systems, so exhaust, aero, suspension, brake, wheel and setup choices can work together.

Dyno, scan and track validation

Measured & validated

Dyno, scan and track validation

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

981 race-car balance, modern support

Street + track

981 race-car balance, modern support

More response and more range while preserving the honest mid-engine feel that makes the 981 Clubsport valuable.

Support from Porsche race-car specialists

Real support

Support from Porsche race-car specialists

Guidance from people who understand 981 GT4 Clubsport fitment, power paths, suspension range, brake support and track use.

Customer Reviews

Overall rating: 5 / 5 from 453 reviews.

Great quality, fit and finish is fantastic, instructions were very thorough. Installed on 991.2 GT3 Cup, raced it the next day and everything held up wonderfully!

Rachael C. 5/5 Verified

Dual Carbon Dive Planes (991.2 GT3 and GT3RS)

Just installed the full Dundon full exhaust (Street Headers and SS muffler, PVD black tips) on my 992.2 GT3 Touring. The craftsmanship and build quality are outstanding. The exhaust really brings the 4.0L flat-six to life - a must have for .2 GT3. No CEL. Very impressed with the overall quality, fitment and engineering. Highly recommend Dundon!

Albert M. 5/5 Verified

992.2 GT3 Street Header Complete Exhaust Package (non-EU)

Customer photo review of 992 GT3RS Street Header Complete Exhaust Package (non-EU)

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.

Jonathon S. 5/5 Verified

992 GT3RS Street Header Complete Exhaust Package (non-EU)

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.

Andrew K. 5/5 Verified

Titanium Ultralight GT3/RS Muffler

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

Nick P. 5/5 Verified

991 Street Header Catalysts (Pair)

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

Kevin L. 5/5 Verified

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.

Ryan R. 5/5 Verified

718 GT4RS Street Header Package

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

John P. 5/5 Verified

Nurburgring Quiet Tips

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

John P. 5/5 Verified

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.

Kyle P. 5/5 Verified

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!

Stephen N. 5/5 Verified

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.

Marc D. 5/5 Verified

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.

Stephen Q. 5/5 Verified

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.

Stephen Q. 5/5 Verified

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.

George K. 5/5 Verified

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.

George K. 5/5 Verified

Titanium Ultralight GT3/RS Muffler

EXPERT FITMENT HELP

Build the 981 GT4 Clubsport around the way you actually run the car.

Not sure whether to start with power package, race headers, aero, suspension, brakes, wheels or track tools? A Dundon specialist can help match the upgrade path to your 981 GT4 Clubsport, fitment constraints and race-use goals.

  • Goal-based setup Club racing, HPDE support, endurance prep, sound-limited events, spares planning or mixed driver programs.
  • System fitment Power, exhaust, aero, suspension, brake, wheel, tire and setup choices checked together.
  • Confidence before checkout A clearer 981 GT4 Clubsport upgrade path before committing to premium race-car parts.
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