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  • GFB 02-07 WRX / 04-10 STI TMS Respons Blow Off Valve Kit
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GFB 02-07 WRX / 04-10 STI TMS Respons Blow Off Valve Kit

by GFB
10 customer reviews
| 5 answered questions

Price: $251.50 & FREE Shipping. Details
Only 1 left in stock.
Sold by Speed Lap and Fulfilled by Amazon. Gift-wrap available.
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$251.50 & FREE Shipping. Details Only 1 left in stock. Sold by Speed Lap and Fulfilled by Amazon. Gift-wrap available.

Product Information

Technical Details
BrandGFB
Item Weight1.2 pounds
Product Dimensions6.6 x 6.4 x 3.6 inches
Manufacturer Part NumbergfbT9003
  
Additional Information
ASINB007SZ7VDY
Best Sellers Rank #15,525 in Automotive (See top 100)
Shipping Weight1.2 pounds (View shipping rates and policies)
Date First AvailableApril 10, 2012
  
Warranty & Support

Product Warranty: For warranty information about this product, please click here
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Product Description

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. *Features* * Advanced TMS benefits * Spring pre-load adjustment for max. response * Available as universal or direct-fit kit * Venting configurations: - 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


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Customer Reviews

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Most Helpful Customer Reviews

9 of 9 people found the following review helpful By CBR on December 5, 2012
Verified Purchase
The GFB unit is all aluminum and appears to be well made with high quality fit and finish, and I feel it adds a bit to the engine bay without being too flashy or obvious and is much better looking than the stock unit.
It is VERY easy to install. Even someone with the most basic skills should be able to do it, as long as they know how to follow instructions. That said, the instructions are exceptional and detailed, with good pictures and details on how to tune it to your liking.
All the attaching bits are included (two allen screws and they do provide a wrench for them) though you have to take the elbow from the stock unit, which is where I ran into a bit of trouble. I installed this on my 09 STi and had issues with stuck screws on the elbow of my stock unit. Overall, it took me about 3 hours to install it, and that included having to easy out the screws and run to the hardware store, but I think the install should probably take less than an hour.
As the description says, you can adjust the amount it vents to atmosphere so it can be pretty loud if you want to go full rice all the time or you can be more subtle and just have it vent during harder driving. I'm only running a stage I tune, so I'm not doing anything that extreme yet, and bought it mainly for the added sound. I have not experienced any CEL, MAF or stalling issues, and it doesn't seem to be running rich, even though all the forums say that is unavoidable and it did seem to help the throttle response as well as with lag, but it could just be my excitement at the pshhtt-wooosh sound. :)

In any case, I am very happy with this and it makes me enjoy driving my car that much more, even if it is just a noisemaker.
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1 of 1 people found the following review helpful By Alex on May 8, 2015
Verified Purchase
I bought the GFB Respons T9003 to put on my 2008 Forester Sports XT. Install was a breeze however, watch out for the screws that connect the stock BPV to the Recirculation Elbow. Over time they can get stuck in there and the screws can be stripped easy. If it happens just drill a very small hole in the center of the head of the screw and then use a high torque drill to get it off. The BOV itself is a high quality product. The atmosphere vent and the recirculation vent are offset so that when the pressure is realease it always recirculates first. The adjustable spinner is strong and does not turn too easily so that it stays in place. After putting this valve on the throttle response is a little better and it seems to hold boost just as well if not better than stock.

Pros:
-Easy to Adjust Springload
-Adjustable VTA/Recirc
-High Quality
-More Discreet BOV Sound (No Crazy Rice)
-Comes with all required materials however, I would recommend buying new screws that connect the recirc elbow to the BOV

Cons:
-Origional Packaging Was Damaged (Product was fine)

Potential Issues:
-I've heard rumors that the intercooler/BOV flange that comes with the valve leaks, but I have not experienced any boost leak.

If I have any other Issues I will update this to let people know.

Sweet Product Overall 5/5 would recommend.
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By RX8 King on October 3, 2014
Verified Purchase
Paid for 2 day shipping and it was here in basically a day and a half. Awesome seller!
-WARNING- DO NOT BE MD BRAKE OR DISCARD YOUR STOCK BOV GASKET! Trust me when I say I'm saving you a ton of headache and research. The gasket that comes with the blow off valve WILL NOT work! I installed it facing both ways and it just doesn't. When you accelerate past 2k RPM and start spooling your boost it will leak and make a constant duck squealing noise. Install your STOCK BOV GASKET! Make your spring a hair above the surface and twist your BOV to where you see about 1/3rd of the piston. You will NOT have to do anything else and it sound's amazing! You're all welcome to the future owners of this awesome product!!
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By david t smith on July 3, 2014
Verified Purchase
good sound. haven't really noticed a difference in the turbo management part.
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Verified Purchase
A few scratches here and there, but great purchase! Sounds great. It'll definitely help the turbo out after replacing my exhaust!
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