This is the Magnaflow 16661 Street Series Stainless Cat-Back System.
The Magnaflow 16661 fits the following applications:
- 2004 Subaru Impreza WRX STI 2.5L
- 2005 Subaru Impreza WRX STI 2.5L
- 2002 Subaru Impreza 2.0L
- 2003 Subaru Impreza 2.0L
- 2004 Subaru Impreza 2.0L
- 2005 Subaru Impreza 2.0L
This system is dyno tested and proven to make power with performance gains in both Horsepower And Torque. They are tuned to give a great sound. The Magnaflow 16661 Street Series Stainless Cat-Back System is easy to install requiring few if any modifications and is designed to bolt directly on. The system will contain all parts needed for a factory-type install.