SR20DET engines in the S14 and S15 Silvia/240SX benefit greatly from a blow-off valve that balances turbo protection, throttle response, and driver preference. The Go Fast Bits TMS Respons Hybrid Blow Off Valve (T9004) is an advanced hybrid design that significantly reduces turbo lag by returning the engine to boost up to 30% faster than the factory bypass valve after gear shifts. This translates to sharper acceleration and more consistent power delivery, especially during spirited driving or track sessions.
The Respons features Go Fast Bits’ patented adjustable venting bias system, allowing infinite fine-tuning between full recirculation (quiet and OEM-like) and full atmosphere venting (loud and aggressive). A simple manual adjustment via the cap ring lets you dial in the exact sound and performance balance you want, and it can be locked in full recirc mode for emissions-sensitive or street-legal applications. Spring pre-load is also adjustable for maximum responsiveness tailored to your boost level and driving style.
At Terra Firma Automotive, we supply this genuine Go Fast Bits TMS Respons Hybrid Blow Off Valve as a premium upgrade for S14 and S15 SR20DET owners seeking better turbo management and engaging sound control. It combines advanced engineering with practical adjustability, helping protect your turbo while enhancing throttle sharpness and overall drivability. For enthusiasts who want a versatile, tunable blow-off valve that adapts to their needs, the Respons is one of the most capable and user-friendly options available for the SR20DET platform.
- Go Fast Bits TMS Respons Hybrid Blow Off Valve for S14/S15 SR20DET
- Reduces turbo lag and returns to boost up to 30% faster than stock
- Patented adjustable venting bias system for infinite recirculation-to-atmosphere tuning
- Manual bias adjustment via cap ring with lockable full recirc mode
- Spring pre-load adjustment for optimized response at different boost levels
- Hybrid design suitable for both street and track applications
- Maintains smooth drivability while delivering aggressive sound when desired
- Advanced TMS (Turbo Management System) technology for superior performance
- Direct upgrade for improved throttle response and turbo protection
- Premium Go Fast Bits engineering with proven real-world results
- Versatile solution that adapts to your sound and performance preferences
- Essential upgrade for tuned SR20DET builds seeking better boost control
- Trusted by Silvia enthusiasts for adjustability and reliability
- Compatible with sensitive airflow meter setups
- Perfect balance of functionality, sound, and street legality options
- ⚠️ California Proposition 65 Warning: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm - www.P65Warnings.ca.gov
- ⚠️ Emissions / California Legal Disclaimer – Off-Road / Competition Use Only: This product is intended for off-road, competition, and track use only. It is not legal for sale or use on public roads or highways in California (or any other CARB-adopting state). For more information Click Here.
Questions & Answers
Have a Product Question?
Be the first to ask a question about this part.