£236.99 inc. 20% VAT £222.75 inc. 20% VAT

Quick Overview:
Go Fast Bits Vent to Atmosphere AND Recirculating Dump Valve

Regular price: £236.99 inc. 20% VAT
Our price: £222.75 inc. 20% VAT
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£222.75 inc. 20% VAT

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£222.75 inc. 20% VAT

Go Fast Bits Vent to Atmosphere AND Recirculating Dump Valve for the following models:-

Impreza 2001-2007 WRX and STI (Bugeye, Blobeye, Hawkeye)
Impreza 2008-2010 Hatchback STI (not WRX - see other listing)
2010-2013 STI Saloon
2014-2020 STI

Respons TMS Direct fit Blow off valve or BOV with GFB TMS advantage. Patented adjustable venting bias system diverter valve.

Atmosphere venting BOV won’t work on your car? Try a GFB Respons – you’ll be surprised!

Just another dual-port BOV?

On the surface it may look like just another dual-port blow-off valve,but the Respons is actually much more than that. Featuring GFB’s patented venting bias adjustment system, the Respons allows you to precisely control how much air vents from each of the two outlets.

Why is this so important? Two key reasons:

Adjust how loud the blow-off sound is. Recirculate all of the air for silent factory operation, vent it all to atmosphere for maximum noise, or set it ANYWHERE in between to suit your preference. Get a blow-off sound WITHOUT causing stalling, backfiring, or any other BOV-related issues, even on a car with a sensitive airflow meter (MAF).

Hold on, it gets better. The Respons isn’t just a noise-maker. It also;

Offers better throttle response Faster boost recovery on gearshift Unlimited boost-holding!

For example, using GFB’s TMS (Turbo Management System) principle, tests show that the Respons can return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears.

When we say “bolt-on”, that’s EXACTLY what we mean. Everything you need is included, it fits directly in the factory location (not on a separate adaptor), and no modifications to the car are required.

Performance AND sound without compromise!

Adjust the volume of your blow-off sound
Up to 30% faster boost recovery on gearshift
Get the blow off sound without the hassles - even on sensitive MAF-based systems
Hold unlimited boost pressure
Direct bolt-on kits available

GFB is no stranger to dual port BOVs. In fact, GFB pioneered the design in 1999, following up with the patented venting bias adjustment system in 2001.

This technology is not just a gimmick – it’s the key to getting a blow-off sound without the issues (unlike other valves), and is exclusive to GFB.

Performance should not be about compromise – parts should fit correctly and deliver real performance outcomes, without making the car difficult to live with on a daily basis. GFB now has three qualified engineers (mechanical and mechatronic), and a team of dedicated enthusistic & passionate individuals who make the GFB name what it is today.

“GO FAST BITS” products are Proudly Australian, made in accordance with the ISO 9001 quality management system. Constantly we’re developing new, and innovative products. Keep an eye on the website for the latest of GFB’s innovations.

Part Ref: T9003
GFB Respons Respons BOV Dump Valve Subaru Impreza WRX & STI 2001-2019
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