GFB Deceptor Pro II Motorised Blow Off Valve w/ TMS Advantage for Select Subaru 2014-2020 (T9507)

Fits 2014-2018 Subaru Forester (2.0XT) and 2015-2020 Subaru WRX models.

The GFB Deceptor Pro II (T9507) provides the ultimate solution for drivers who want total control over their vehicle's blow-off valve sound without leaving the driver's seat. Featuring a high-torque geared motor, this valve allows you to adjust the venting ratio between full recirculating for silent operation and full atmospheric for that signature turbo sound—all controlled on-the-fly from the cabin.

Engineered with GFB's TMS Advantage, this unit is designed specifically to improve throttle response and reduce turbo lag by ensuring the valve stays shut when it isn't needed. Beyond acoustics, the Deceptor Pro II serves as a critical tuning tool for MAF-sensitive Subaru engines. It allows you to dial in the exact venting ratio required to achieve a blow-off sound without the stalling, stumbling, or backfiring issues often caused by standard atmospheric valves.

• Motorized Adjustment: Remote-controlled venting bias via the included in-cabin controller.
• TMS Advantage: Designed to maintain boost pressure and improve throttle recovery during shifts.
• Variable Sound: Adjust anywhere from 0% to 100% atmospheric venting to suit your environment.
• Direct Fit: Replaces the factory bypass valve with no permanent vehicle modifications required.
• Complete Kit: Includes the Deceptor Pro II valve, wiring loom, and electronic controller.
• Manufacturer Part Number: T9507