Adjustable Dual Port Blow-Off Valve Blue, Black, and Red. These units are fully customizable and are 3-in-1 in terms of functionality. They could be run as:
- Fully venting off to atmosphere (a.k.a SuperSonic)
- Fully recirculating like a diverter valve, except still make the sweet BOV sound (a.k.a PlumBack)
- Half & Half (a.k.a 50/50)
The kit comes with a direct bolt-on fit flange adapter (i.e. plug and play, no welding required) for the following vehicle makes & models:
Mazdaspeed 3 2007-2013
Mazdaspeed 3 2010-2013 BL series, but will require an aftermarket airbox to have room for the BOV to fit too.
Mazdaspeed 6 2006-2007
Mazda CX7 2.3L 2006-2012
These units are also adjustable by twisting the top cap clockwise, and counter clock-wise to control the degree of vent off for fine-tuning and getting the most out of the BOV based on any individual's preference.