Boomba Racing Inc. FOCUS RS BLOW OFF VALVE [Installation Manual] Note: For USDM [MAP Tuned] Spec Vehicles No aftermarket tuning required. Will work on stock tune or aftermarket tunes. This high-performance VTA (vent to atmosphere) blow-off valve is precision machined out of aircraft-grade billet... MSRP: Was: Now: $246.00 Choose Options
