Agency Power Equal Length Header Subaru WRX / STI 2002-2014


Agency Power Equal Length Header Subaru WRX / STI 2002-2014


Many Subaru owners want their turbo cars to spool up quicker and still deliver great horsepower and torque gains. With the new Agency Power equal length header this is absolutely possible. By implementing equal length tubing and a merged collector, Agency Power is able to improve your turbo spool up by 300rpm. When testing this on header on an upgraded turbo vehicle, AP were able to see gains on a Mustang Dyno of up to 30ft/lbs of torque and 20 wheel horsepower! With quicker turbo spool, both 60ft and ¼ mile times were improved at the drag strip. Due to the free flowing design of this header, you will see gains across the entire RPM range as exhaust flow is vastly improved. If you are looking for awesome bolt on power and have not considered a header, definitely pull the trigger!

The Agency Power equal length header features polished 304 stainless steel for a show quality finish. The header has CNC machined ½ inch thick flanges for maximum durability. Due to the equal length design, this will alter the distinct Boxer engine sound for a less rumbly, but sharper exhaust note.


Header to uppipe gasket included

Fitment: 08-14 WRX/02-14 STi

Part #: AP-GDA-176


Vendor: Agency Power

Additional information

Weight 16.75 lbs