The 04-07 Subaru STI Invidia N1 Exhaust is constructed with SUS304 stainless steel, CNC-machined flanges, and completed with a high polished finish. Mandrel-bent piping offers maximum exhaust flow and reduced back-pressure. The N1 Exhaust is engineered to produce strong mid to top-end power gains, as well as an increase in horsepower and torque.
- 04-07 Subaru STI Invidia N1 Exhaust System
- 76mm Piping
- 101mm Tip
**The N1 Street series includes a resonator for a milder sound and a flex joint for easier installation.