Q BV50 Stye BLACK 50mm Blow off Valve BOV 6PSI + 18PSI Springs PERFORMANCE Cooling Fans CNC‑machined MAF housing keeps airflow

CNC‑machined MAF housing keeps airflow readings stable

The PERRIN heat shield comes in a brushed stainless finish

Matte Black Finish: Install as is or paint to match your style

Direct bolt-on fitment for WRX 2011-2014 Sedan

Q BV50 Stye BLACK 50mm Blow off Valve BOV 6PSI + 18PSI Springs PERFORMANCE Cooling Fans CNC‑machined MAF housing keeps airflowProduct description Color: Black Application: Universal Features and Benefits: High Quality Diaphragm and Short Stroke Significantly Increase Response. Dual Spring System Promoted Response and Allows for High Boost Pressures. Hard Anodized Valve for Increased Air Flow. Powder Coated Anodized and Polished Finish. Draws In Surrounding Air and Releases Aggressive Unique Discharge Sound. Built for Easy Installation; Weld On Aluminum Flange, O Ring and