As a result of using this product, I found that my cars exhaust system had significantly improved performance. The flexible steel construction allowed for better airflow leading to a more efficient engine and smoother driving experience. It also seamlessly fit into my existing system .The only downside was the slightly higher price point compared to other options on the market. But overall, Walker Exhaust's 40006 Flex Tubing Steel is a great investment for any performance car enthusiast looking