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:
Hold on, it gets better. The Respons isn’t just a noise-maker. It also;
BEASTBy: chris on 31 March 2016Extremely happy with the GFB Response. simple and easy to install (10 minutes).no problems with backfiring or stalling either.