GGB Exhaust

Hi, I’m working on an article about improving vehicle performance through aftermarket upgrades, with a focus on exhaust systems. I’m looking for insights from automotive experts, mechanics, performance engineers, or professionals with hands-on experience. Please share your expert input on: How aftermarket exhaust systems impact engine performance (horsepower, torque, fuel efficiency) Common mistakes people make when upgrading exhaust systems Differences between stock vs performance exhaust systems How to choose the right exhaust system for different vehicles (snowmobiles, bikes, cars, etc.) Any real-world examples or case studies Please include: Your name & designation Company/website (if applicable) A short, quotable response (2–5 sentences preferred)