The 2011+ Subaru STI AVO Cat-back Exhaust is constructed from the highest quality TIG-welded stainless steel that is mandrel bent for maximum flow and reduced back pressure. The flat bottom shaped muffler design results in improved high speed aerodynamic performance. giving greater horsepower and torque gains with a rich sporty sound.
- 2011+ Subaru STI AVO Cat-back Exhaust System
- Increases horsepower and torque
- 304 stainless steel
- TIG welded
- 3 inch piping
- Includes all hardware and gaskets