Through trial and error, I found that this catalytic converter is the best option for enhancing my car's performance. It's compliant with regulations and reduces emissions while maintaining optimal horsepower. The installation was straightforward, and it works seamlessly with my car's exhaust system. The downside is it's a bit pricey compared to other options in the market. Overall, a great investment for any performance car enthusiasts looking for a reliable and efficient catalytic converter.