If you've been struggling to find a blow-off valve that actually fits your ride and delivers the sound you crave, let me introduce you to the GFB Respons TMS. This isn't just another dual-port BOV that looks good on paper; it’s a game changer in terms of performance and sound.
What sets the Respons apart is its unique venting bias adjustment system. You can tweak how much air vents from each outlet, which is pretty cool if you ask me. Want to keep things quiet? You can recirculate all the air for a stealthy factory-like operation. Feeling a bit more adventurous? Open it up to atmosphere for that iconic blow-off sound, or find a sweet spot in between. It’s all about what you prefer.
Now, why should you care about this kind of control? Well, for starters, you can enjoy that blow-off sound without the annoying stalling or backfiring that can happen with sensitive MAF setups. It’s a relief to know that you can have the fun without the headaches.
But there’s more! The Respons isn’t just about making noise; it actually enhances your driving experience. You’ll notice better throttle response and quicker boost recovery when you shift gears. In fact, tests show that it can return your engine to peak boost up to 30% faster than the stock diverter valve. That’s a pretty impressive stat if you’re looking to get the most out of your turbo setup.
Adjusting the venting bias is straightforward. Just twist the adjusting ring to open the atmo port while closing the recirc port. This lets you fine-tune that venting ratio from 100% recirc to 100% atmosphere, and everything in between. It’s like having the best of both worlds right at your fingertips.
Installation? Piece of cake. The Respons comes with everything you need for a direct bolt-on fit, so you won’t be messing around with adapters or making modifications to your car. It fits right into the factory location, making it an easy upgrade for your Nissan Silvia S14/S15.
In short, if you want a BOV that gives you the sound and performance without the usual compromises, the GFB Respons TMS is worth checking out. You’ll get:
Fitment:
Other Part Numbers:
Go Fast Bits #gfbT9004
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1995-1998 Nissan 240SX S14 |
240SX S14 | 1995-1998 |
|
1999-2002 Nissan Silvia S15 |
Silvia S15 | 1999-2002 |

It all started with the passion of John Adrian to create something that other aftermarket parts cannot produce. Most parts he encountered are either of low quality and are made out of inferior materials.
He decided to take matters into his own hands and started designing, testing, and developing parts that would help improve the performance of his vehicle. Using his own car as a personal testbed, he created products that other enthusiasts later noticed, which has become the start of Go Fast Bits.
Your Source of Performance PartsThe company offers various performance parts such as boost controllers, blow-off valves, short shifters, pulley kits, and more. John Adrian also acts as the chief engineer of the company. Using his 35 years of experience manufacturing high-quality parts for the automotive industry that includes Original Equipment Manufacturers (OEM) parts, he was able to produce parts that meet the demands of his customers.
Quality Made ProductsAll their parts are meticulously made using the highest grade material available to ensure product durability and reliability. Each piece is manufactured to fit perfectly on the vehicle and tested to ensure optimum performance and nothing less.
Purchase Go Fast Bits Parts At Vivid RacingIf you are in the market for high-quality products that would help improve your vehicle's performance, then Go Fast Bits is a brand that you can trust. Their products are proven to deliver performance without compromising the daily drivability of your vehicle. Whether your car is used as a grocery getter or a weekend racer, Go Fast Bits has the right parts for you.
To know more about the company, visit Vivid Racing and check out their parts list that fits your specific requirement.