Daryl’s 997.1 GT3 RS Transformation with Dundon Motorsports
Every Porsche enthusiast dreams of refining their car’s performance, making it sharper, more responsive, and even more exhilarating to drive. At Dundon Motorsports, we don’t just modify cars; we build relationships with our customers and work with them to achieve the ultimate driving experience.
One of our long-time customers, Daryl, owns a stunning green 997.1 GT3 RS. He has been a dedicated member of the Dundon Motorsports family for years, entrusting us with his vehicle for various performance upgrades and development testing. When he approached us with the goal of enhancing his GT3 RS, we knew we could help him take it to the next level. This is the story of that transformation.
📽️ Watch the full video of this project: Click here to watch
The Vision: More Power, More Excitement, and Staying True to Porsche’s Heritage
Daryl came to us with a challenge: he wanted to enhance the performance of his 997.1 GT3 RS while keeping it naturally aspirated and ensuring that all modifications were completely reversible. He considered a 4-liter engine conversion, but after weighing the costs and benefits, he opted for a smarter, more efficient approach—a full Dundon Motorsports Performance Package featuring bolt-on modifications.
Rather than investing in an expensive displacement increase, we focused on breathing improvements—better air intake and exhaust flow. With a precise selection of high-performance parts, we were able to unlock incredible power gains while preserving the car’s legendary balance and character.
The Key Upgrades: A Performance Symphony
1. Street Header & Titanium Ultralight Muffler Power Package
The heart of this upgrade was the Dundon Motorsports Street Header & Titanium Ultralight Muffler Power Package. These lightweight headers maximize exhaust flow efficiency, improving horsepower and torque output while also producing an intoxicating, high-pitched exhaust note that amplifies the car’s raw character.
The ultralight titanium muffler is a game-changer—shedding weight and enhancing performance without introducing excessive drone.
🔗 Available here: Street Header & Titanium Ultralight Muffler Power Package
2. Resonance Air Intake Plenum with 93mm Throttle Body
Next, we installed the Resonance Air Intake Plenum coupled with a 93mm throttle body. This upgrade enhances air delivery to the engine, allowing for improved response and higher peak power. The design of our plenum takes full advantage of resonance tuning, optimizing airflow at high RPMs and complementing the upgraded exhaust system perfectly.
🔗 Available here: Resonance Air Intake Plenum with 93mm Throttle Body
3. Dual-Cone Carbon Fiber Airbox
To complete the breathing improvements, we added our Dual-Cone Carbon Fiber Airbox, a lightweight, high-flow intake system that provides the engine with cooler, denser air. The result? Increased efficiency, sharper throttle response, and an unmistakable induction sound that enhances the driving experience.
🔗 Available here: Dual-Cone Carbon Fiber Airbox
The Process: Crafting a Performance Masterpiece
From the moment Daryl’s GT3 RS rolled into our shop, we knew we were in for something special. It’s always a privilege to work on a customer’s car—especially when that customer has been with us for years, trusting our expertise to deliver the best results.
We started by carefully disassembling the stock components, ensuring that everything was documented and preserved for potential reinstallation. The headers and titanium muffler went in first—an instant transformation that not only improved performance but also gave the car a more aggressive, motorsport-inspired tone.
Next came the intake upgrades. The Resonance Air Intake Plenum and 93mm Throttle Body fit seamlessly, enhancing the engine’s breathing capabilities and making throttle inputs feel razor-sharp. The Dual-Cone Carbon Fiber Airbox was the final puzzle piece, giving the car an unmistakable induction sound under full acceleration.
With all components installed, it was time for dyno testing. This is where we validate our work and fine-tune the setup to ensure optimal performance. The results spoke for themselves:
The Results: Measurable Performance Gains
The D4 Power Package, as we call it, delivered incredible results on Daryl’s 997.1 GT3 RS:
— Peak Power Increase: +75 HP at 8000 RPM 🔥
— Torque Boost: +42 ft-lbs at 7000 RPM 💪
— Enhanced Powerband: Stronger pull throughout the rev range 🚀
— Weight Reduction: Improved power-to-weight ratio ⚖️
When we took the car for its first post-upgrade drive, the difference was night and day. The throttle response was sharper, acceleration was more immediate, and the sound was simply breathtaking. Daryl’s GT3 RS had transformed into an even more exhilarating machine, bridging the gap between raw analog driving and cutting-edge performance.
The Final Verdict: A Customer’s Perspective
When Daryl came to pick up his car, the excitement was palpable. As soon as he fired up the engine, he could hear the difference. But it wasn’t until he hit the road that he truly felt the transformation.
His words? “It’s everything I wanted and more. The sound, the power, the responsiveness—it’s like the car has been reborn.”
That’s why we do what we do. We don’t just install parts—we create experiences. Daryl’s 997.1 GT3 RS is now sharper, faster, and more engaging, and most importantly, every modification remains reversible if needed.
Want to Elevate Your GT3 RS?
If you’re looking to enhance the performance of your 997.1 GT3 RS, check out our full range of upgrades:
🔗 Explore Dundon Motorsports Performance Parts
At Dundon Motorsports, we are grateful for every customer who trusts us with their vehicle. Whether it’s a subtle refinement or a full performance package, we treat every car as if it were our own.
Daryl’s GT3 RS is proof that with the right combination of bolt-on modifications, you can achieve big gains without major compromises — keeping the soul of the GT3 RS intact while unlocking its full potential.