Porsche 911 GT3 RS Goes for Full Racecar Sound

Dundon Motorsports exhaust upgrade gets the Porsche 991.2 GT3 RS to do its best 911 RSR impression.

Ah, now this is something near and dear to our heart. Take a normally aspirated Porsche motor, and ramp it up to the point where it sounds like a full-blown racecar. To many enthusiasts, the sound a car makes is critical to its appeal. Porsche has made some lovely sounding cars over the years. The GT3 RS puts on a darn good auditory show as it’s equipped out of the factory. However, if you want full-bore racecar noises you will have to do a little work.

Not content to just polish and pamper his GT3 RS, Adam LZ shows us on his YouTube channel, how insane the car can sound with an exhaust upgrade. The car already had aftermarket headers and hi-flow catalytic converters before the exhaust was bolted on, but as you can hear in the video, the sound it makes now is out of this world. The amazing thing is, in real life these things are always much louder than what comes across in videos.

The exhaust that was installed was from Dundon Motorsports and the official name is: 991 INCONEL MEGAPHONE CENTER MUFFLER DELETE “CRACK PIPE”. Let’s break that down a bit. INCONEL® is a high-nickel superalloy with high tensile strength and corrosion and heat resistance. Megaphone. Well we all know what a megaphone is.  Center muffler delete. The less mufflers the better. Crack pipe. Let’s just say that feeds an addiction. So, based on the name alone this product seems promising and it sure looks the business as well. A side benefit of the system is that it tips the scales 30 pounds less than the stock unit.

With the exhaust bolted on, the car is fired up in the shop and after the first rev you can tell this thing means business. It is out on the street though where you can hear and feel the benefits of this exhaust. The sound is just unreal. If you closed your eyes you could imagine yourself at a racetrack with a racing 911 RSR whizzing past. It really doesn’t even sound like a streetcar anymore. Yet as loud as it sounds to bystanders, the drone and buzzing inside the car is reportedly quite low. Words cannot accurately describe the sound; you just have to hear it. It is impossible not to smile when you hear this car do a drive-by.

Electric power seems to be the path forward for all cars, performance and even race cars included. The acceleration and efficiency of electric power is hard to ignore. What they miss though is the sound, that beautiful sound. The sound of a mechanical engine working. The sound of power being made. The sound of hot gasses being fired at the world from a couple of pipes at the back. The sound that you can feel in your chest as a car like this drives by. That is going to be tough to replicate in the new, electric world. In the meantime, pick up your megaphone crack pipe and make some noise!

Photos: Porsche; Dundon Motorsports

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Joe Kucinski

Joe has been obsessed with cars since he got his very first Matchbox toy in the ‘70s. In 2003, he found a new obsession in track days that led to obtaining his SCCA competition license in 2015. In 2019, he became a certified driving instructor for the National Auto Sport Association. His love for all things four wheels has never wavered, whether it's driving some of the best cars in the world on the racetrack, tackling 2,000-mile road trips in 2-seat sports cars or being winched off the side of a mountaintop in a Jeep. Writing for the suite of Internet Brands Auto Communities sites, including Rennlist.com, Ford Truck Enthusiasts, 6 Speed and more allows him to share that knowledge and passion with others.