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Performance Exhausts Systems Cat Back Exhausts
alphonsoppr95 edited this page 2 months ago
Most designs of the time therefore included secondary air injection, which injected air into the exhaust stream. This increased the available oxygen, allowing the catalyst to function as intended. Cat-back exhaust systems replace every component behind the catalytic converter, including most piping, mufflers, resonators, and tailpipes.
Considering cat-back exhausts replace more restrictions, they typically offer increased performance and noise compared to axle-back systems