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2012-2013 Boss 302 Headers

The 2012-2013 Boss 302 Mustang exhaust is nice from the factory, but still traps a lot of horsepower.  Vehicle owners can see significant results with simple upgrades, or larger results with a complete system replacement.  JMS has tested and used a wide variety of assemblies and combination of parts.  As a result, we have documented a host of mixed and matched components, and logged a considerable amount of dyno hours.


Exhaust headers, while not as common of an upgrade, can be an essential part of the horsepower equation when doing a complete transformation to the 2012-2013 Boss 302 Mustang.  The long-tube header design has become the most acceptable as a result of packaging with the stock architecture and installation.  Exhaust headers, when mated to the correct combination of mid-pipe and cat-back exhaust, can offer substantial performance and power increases on even an unmodified engine.  If you're looking for more power, but want to stay away from supercharger upgrades, a complete exhaust system upgrade is likely the best path for you.  Also note that computer ECU custom tuning is essential when installing new headers to correct common issues related to oxygen sensor positions and improved air flow.