Turbosmart BOV Dual Port Subaru-Black 1990-nissan-d21-esi2196425 The stock BMW setup has

The stock BMW setup has an aggressive camber curve through bump travel

The system includes our Polyphonic Harmonizer technology which utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean

1986-1988 Mazda 323 1

This exhaust has a resonator and a muffler and generates an aggressive

409 stainless steel tubing

Turbosmart BOV Dual Port Subaru-Black 1990-nissan-d21-esi2196425 The stock BMW setup hasEasy to install and set up, the Turbosmart Dual Port BOV to suit Subaru features sequential ports for quiet operation on mild boost and full performance at full boost.