GFB 99-00 WRX/STI TMS Respons Blow Off Valve Kit

(Excluding Injectors) For Non Continental USA or International Shipping on ECUs and some other items, Please contact us directly to get an accurate quote for your order.

PLEASE CONTACT US DIRECTLY BEFORE PLACING ANY ORDERS TO CHECK AVAILABILITY ON ITEMS! SOME ITEMS MAY BE OUT OF STOCK WITHOUT ANY INDICATION. IF AN ORDER IS PLACED WITHOUT CONTACTING US DIRECTLY AND NEEDS TO BE CANCELLED, THERE IS UP TO A 10% CANCELLATION FEE!

  • This is a SPECIAL ORDER item and availability can vary, please contact us for an accurate timeframe of availability before purchase. Some items can take 30+ days from manufacturer to become available.***ANY SPECIAL ORDER PLACED WITHOUT CONTACTING US FIRST IS SUBJECT UP TO A 10% CANCELLATION FEE***

  • Manufacturer Part Number: T9000
  • $298.80
    Unit price per 
  • Save $33.20


  • WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. PROP65 INFO
If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. By adjusting the venting bias to suit the car you can achieve a blow-off sound without having to put up with the issues. Like all GFB valves, the Respons utilises GFB's proven TMS Technology to ensure rapid boost recovery on gearshift and optimum throttle response, as well as the ability to withstand boost pressures of 100 psi plus. Put simply, it can hold more boost than any turbo could produce.

This Part Fits:

Year Make Model Submodel
2004-2005 Subaru Forester XT
1999-2000 Subaru Impreza L
1999-2000 Subaru Impreza Outback
1999-2000 Subaru Impreza RS
1998-2000 Subaru Legacy Brighton
1998-2002 Subaru Legacy GT
1998,2000-2002 Subaru Legacy GT Limited
1998-2002 Subaru Legacy L
1999 Subaru Legacy L 30th Anniversary
1999 Subaru Legacy Limited 30th Anniversary
1998-1999 Subaru Legacy Outback
1999 Subaru Legacy Outback Limited
1998 Subaru Legacy Postal
1999 Subaru Legacy SUS 30th Anniversary