The larger the diameter #exhaust #system #suppliers offer, generally the more free-flowing the system is. 📏 But be careful not to go too large here as it can create too much #backpressure 🚫 which is a lot worse than a stock exhaust. 🚗 https://drivetowardmodernity.wordpress.com/2024/07/02/the-aftermarket-advantage-a-beginners-guide-to-performance-exhausts/