GFB 99-00 WRX/STI TMS Respons Blow Off Valve Kit

The GFB 99-00 Subaru Impreza WRX and STI TMS Respons Blow Off Valve Kit is a high-performance atmospheric venting BOV designed to improve throttle response and boost recovery. Utilizing GFB's proven TMS Technology, this valve allows for adjustable venting bias, enabling users to customize the blow-off sound while eliminating common issues such as backfiring and stalling associated with fixed-ratio BOVs. Constructed to withstand boost pressures exceeding 100psi, the Respons BOV ensures reliable operation under demanding conditions. Its design promotes rapid boost recovery during gear shifts and enhances overall throttle response, making it an ideal upgrade for enthusiasts seeking both performance and sound customization.

This kit is specifically engineered for 1999-2000 Subaru Impreza WRX and STI models, providing a direct bolt-on replacement for the factory valve. It is suitable for street and performance applications, offering adjustable venting to suit various driving styles and boost levels. The installation process is straightforward, requiring no additional modifications. The kit includes the Respons BOV and necessary mounting components, ensuring a secure fit. Compatible with turbocharged engines in these model years, this valve is an excellent choice for drivers aiming to optimize their vehicle’s boost control and auditory experience.