GFB T9535 Deceptor Pro II Electronically Adjustable BOV Blow-Off Valve

The GFB Deceptor Pro II is an electronically adjustable blow-off valve that puts sound control at your fingertips. Unlike traditional BOVs with fixed venting characteristics, the Deceptor Pro II features a sophisticated electronic controller that allows you to adjust the venting bias from inside the cabin—going from silent recirculation to full atmospheric vent, or anywhere in between.

Key Features:

• Electronic proportional venting bias control with backlit in-cabin controller
• High-torque geared electric motor drives the adjustment mechanism for precise, reliable tuning
• Endpoint adjustment allows you to set the maximum atmosphere venting level
• Optimized internal porting for improved flow characteristics and precise venting control
• Compact design fits most factory diverter valve locations for direct bolt-on installation
• Advanced bore finishing process with precision sealed ball-bearings ensures long-term durability
• Complete installation kit includes all wiring, mounting hardware, and controller

The Deceptor Pro II combines the performance of a high-flow blow-off valve with the versatility of on-demand sound control. Whether you want stealth operation for daily driving or the signature BOV sound at the track, you can switch between modes instantly without opening the hood. The durable low-friction gear train and quality construction ensure reliable operation under the demanding conditions of turbocharged performance applications.