Direct-Fit Blow-Off / Diverter Valve with Adjustable Venting Bias

The GFB Respons TMS T9002 is built to replace the factory bypass/diverter valve on the compatible Mazda, Mitsubishi and Nissan turbo applications listed below. It gives you control over how boost pressure is released during throttle lift, with the flexibility to run it quiet and factory-like or dial in more blow-off sound.

Adjust the Sound Without the Usual Side Effects

Instead of being locked into full recirculation or full atmosphere venting, the Respons valve allows you to set the venting split anywhere between the two. This makes it easier to get the sound you want while keeping stable everyday drivability.

Sharper Response Between Gear Changes

The valve is designed to vent only what’s required, helping preserve boost where possible and supporting faster boost recovery after shifts for a more responsive feel.

Direct-Fit Installation

This is not a universal weld-on valve. The T9002 is supplied as a direct-fit solution for the vehicles listed below, designed to suit the factory valve location for those applications.

Built for Street and Performance Setups

Suitable for factory and modified cars, the Respons TMS design is aimed at consistent boost control and repeatable performance under heat and load.