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GFB TMS Respons Hybrid Blow off Valve - Subaru WRX 2008-2014/Legacy GT 2005-2009

by GFB
$429.00 NZD
SKU gfb-T9001
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Part Number: T9001

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.

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