Direct Bolt-On Diverter / Blow-Off Valve for Select Subaru Models

The GFB Respons TMS T9007 replaces the original factory bypass valve on select Subaru turbocharged cars with a performance-oriented unit that incorporates adjustable venting bias. This lets you control how much air is recirculated versus vented to atmosphere, and dial in blow-off sound without compromising drivability.

Adjustable Venting Bias

The patented system allows fine-tuning of sound and venting behaviour, ranging from quiet recirculation to a more audible atmospheric venting style, based on your preference and vehicle setup.

Improved Response and Boost Control

By venting only what’s required in a controlled manner, the T9007 helps reduce compressor surge and supports faster boost recovery between gear changes compared with many stock diverter valves.

True Bolt-On Installation

This valve installs directly in the OEM bypass valve location on the listed Subaru vehicles with no cutting or fabrication required. It uses stock mounting points and hose connections.

Durable Construction

Built with high-quality materials and engineered for repeat heat cycles and boost pressures, the Respons TMS T9007 is suitable for both daily driving and performance use.