2015+ Subaru WRX TMS Adjustable BOV by Go Fast Bits
GFB Blow Off Valve - Respons:
As the name suggests, the GFB Respons is designed specifically with the aim of improving throttle response and reducing turbo lag.
What's TMS? GFB's Turbo Management System is the term we apply to our diverter valves that have features designed specifically for the purpose of turbo lag reduction.
Tests show that TMS features can return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears.
On top of the TMS benefits, the Respons also packs GFB's patented adjustable venting bias system found on the Stealth FX.
This unique system allows the amount of air vented to either recirc or atmosphere to be infinitely varied to change the venting sound like a stereo volume dial!
So if you want noise with your performance, the Respons can deliver! By fine-tuning the venting ratio, you CAN achieve a blow-off sound WITHOUT throwing a CEL, running rich, stalling, using more fuel or causing any other problems commonly associated with atmo-venting valves on cars with MAF sensors.
Available in a range of universal hose-mount or direct bolt-on configurations for many popular models.
- Advanced TMS benefits
- Spring pre-load adjustment for max. response
- Available as universal or direct-fit kit
- Full progressive bias adjustment from recirc (silent) to atmosphere (loud)
- Bias adjustment done manually via cap ring
- C an be locked off in full recirc mode for legality purposes
Best choice for:
- Quick and easy venting bias adjustment
- A chieving noise on a car that is sensitive to atmosphere venting e.g. VAG applications
Came fast and well packaged! Instructions were pretty cool and detailed. This was really easy to install! Does not need any kind of tuning you can make it as loud as you want or as quiet as you want. It's adjustable!! I found that 60% recirc 40% atmospheric works well not too loud not too quiet. You'll have to do some adjusting with the tension on the preload to get it just right. You can do all of this from the top of the car you won't have to go back under it again! Makes it nice and easy! I would def get this because the stock recirc valve is a pice of crap and made of cheap plastic !
Product came fast and we'll packaged. Very easy installation with car jacked up. Would recommend buying some hose clamps to replace the factory one time use hose clamp. Did main adjustments set at 50/50. I drove around for about a week fine tuning it and then set the valve to 80 percent recirculation and 20 to atmosphere. Love the sound.
Installed with ets cai. Once the spring pressure was dialed in and bypass valve set at 60 to recirculation and 40 to atmosphere car ran great and sounds amazing.