Does An Exhaust Really Add Power? Porsche 987 Boxster / Cayman Dyno Test (ECG Performance Review)

Does adding an aftermarket exhaust to a Porsche Boxster or Cayman actually increase horsepower and torque? In this video, we put the ECG Performance Valved Exhaust to the test on a 2009 Porsche Boxster Base (987.2) to find out — with real dyno results to back it up. 📊 Dyno Results: - Stock (X-Pipe Installed): 227.6 WHP / 194.6 lb-ft - ECG Performance Valved Exhaust: 230.2 WHP / 201.7 lb-ft - Peak Gains: +2.6 WHP / +7.2 lb-ft - Max Gains (at ~4000 RPM): +8.8 WHP / +11.8 lb-ft Note: Assuming Fabspeed’s X-Pipe claims are true, total gains could reach +16 WHP and +18 lb-ft vs. stock.) 🎧 Sound Check: You’ll also hear how the new ECG Performance valved exhaust completely transforms the 987’s character — aggressive and exotic with valves open, yet quiet and refined with valves closed. 🏎️ What’s Covered In This Video: - Baseline dyno at Jotech - Factory vs. ECG Performance exhaust comparison - Sound test (valves open vs. closed) - Detailed dyno chart analysis - Real-world driving impressions ⚙️ Vehicle Tested: 2009 Porsche Boxster 987.2 (2.9L Flat-6, 6-Speed Manual) 💻 Learn More / Buy Now: 👉 https://www.ecgperformance.com 📽️ Related Video: 🔧 How to Install a Valved Exhaust on a Porsche 987.2 — [DIY Tutorial Link]