PERRIN Equal Length Header 02-14 WRX 04-21 STI 600hp This includes a closed rear

This includes a closed rear section

With 8 injector drives and 6 ignition drives

Suitable applications:  CN9A Lancer Evolution 4 CP9A Lancer Evolution 5

16-19 Ford Focus Front Rotors

and also perform diagnostics

PERRIN Equal Length Header 02-14 WRX 04-21 STI 600hp This includes a closed rearPART DISCONTINUED! LIMITED QUANTITIES 2. 0L WRX engines will require 2. 5L STi oil pans to avoid fitment issues during install. The PERRIN equal length header comes with collectors that are designed to increase overall airflow. This precise construct will creates an increase in reliablitly and power, while significantly changing the tone of the exhaust note. This Header has been created to bolt on and go, without tuning required to safely use this