A larger diameter allows for more #engine fumes to pass through a lot more easily than they would through a stock system. 🔧 You should look for an #aftermarket #exhaust #system online that has about an inch of diameter for every #100HP your #vehicle is able to produce. 🚗💨 https://australiaeverydayliving8.wordpress.com/2024/09/26/aftermarket-performance-exhausts-the-key-to-unlocking-undercarriage-power/