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- Christmas Picks
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- All Engine
-
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-
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- All Motor Builds
- Anodized Bolt Kits
- Con Rod Bearings
- Con Rods
- Crankshaft
- Delete/Relocation Kits
- Drive Belts/Timing Belts
- Engine Accessories
- Gaskets
- Head Bolts/Studs
- Head Gaskets
- Hoses & Fittings
- Lubricants/Sealant/Grease
- Main Bearings
- PCV Hoses
- Pistons & Rings
- Pulleys
- Running In Oil
- Short Blocks
- Timing Belt Kits
- TGV Delete Kits
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- Superchargers
- Turbo/Turbo Kits
-
-
-
-
- STI
- Tools
-
-
-
- ACL
- ACS-Australian Clutch Services
- ACT-Australian Clutch Technology
- Alcon
- APR Performance
- ARP
- Autometer
- ABW Motorsport
- Armorall
- Autoglym
- AVO
- Bendix
- Blouch
- Bosch
- Bowdens Own
- Boxer Performance Parts
- Brembo
- Bremtec
- Carillo
- Clutch Pro
- Cobb
- Cosworth
- CRC
- Cusco
- Dayco
- DBA
- Dixcel
- DTM Racing
- Ecliptech
- Endless
- Exedy
- G Loc
- Genuine Subaru
- GFB
- Goodridge
- Greddy
- Grimmspeed
- H&R
- Hankook
- Hardrace
- Hella
- Hot Wheels
- HKS
- IAG
- Invidia
- K&N
- Killer B
- King Springs
- Kitten
- Koyorad
- Loctite
- Lucas
- Magnafuel
- Manley
- MCA
- Meguiars
- Mishimoto
- Motul
- MRT
- Narva
- NGK
- NRG Innovations
- OS Giken
- Penrite
- Permatex
- Pierburg
- PPG Performance Gearboxes
- Process West
- Project Kics
- Project Mu
- PSR
- PWR
- Race Works
- Rain-X
- Radium
- Rally Armor
- RCM Roger Clark Motorsport
- Redline
- Rota Wheels
- Ryco
- Sakura
- Silvers Suspension
- Siruda
- Sparco
- STI
- Street Fighter
- Tomei
- Torque Solutions
- Turbosmart
- ULX 110
- VDO
- Velo
- Whiteline
- Winmax
- Wynns
- Xtreme Performance
- Zeitronix
1 product
GFB Respons 99-00 WRX/STI 98-04 Forester 98-03 Liberty
Regular price $366.95 Save $-366.95Featuring 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.