The exhaust system is responsible for converting engine emissions into less harmful gases before releasing those gases into the atmosphere. The downpipe or front section of an exhaust system connects the exhaust manifold to the catalytic converter. The manifold collects, diminishes, and funnels emissions to the catalytic converter, which converts the emissions into even less harmful substances. Downpipes are designed with a large diameter so that gases can be quickly transferred between exhaust system sections without delay. Without a properly functioning downpipe, the performance and efficiency of the entire exhaust system would be compromised. Your vehicle’s performance is affected when the channel of pipes comprising the exhaust system are inhibited in a way that prevents proper expulsion of the emissions created during the engine combustion process. Replacing your downpipe at the first sign of trouble will promote exhaust system maintenance and improve engine performance.