The KYB Gas-a-just monotube shock absorber has additional performance advantages over the traditional twin-tube design: It can instantly, automatically adjust to your performance needs and never experiences fade due to aeration. The Gas-a-just is available as an OE monotube replacement and as an OE twin-tube performance upgrade. The KYB Gas-a-just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness and control, and a second high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds instant performance on demand.

Fitment:
Mazda 3 i 2004
Mazda 3 i 2005
Mazda 3 i 2006
Mazda 3 i 2007
Mazda 3 i 2008
Mazda 3 i 2009
Mazda 3 S 2004
Mazda 3 S 2005
Mazda 3 S 2006
Mazda 3 S 2007
Mazda 3 S 2008
Mazda 3 S 2009
Mazda 3 SP23 2005
Mazda 5 Grand Touring 2007
Mazda 5 Grand Touring 2008
Mazda 5 Grand Touring 2009
Mazda 5 Grand Touring 2010
Mazda 5 Grand Touring 2012
Mazda 5 Grand Touring 2013
Mazda 5 Grand Touring 2014
Mazda 5 Grand Touring 2015
Mazda 5 Sport 2006
Mazda 5 Sport 2007
Mazda 5 Sport 2008
Mazda 5 Sport 2009
Mazda 5 Sport 2010
Mazda 5 Sport 2012
Mazda 5 Sport 2013
Mazda 5 Sport 2014
Mazda 5 Sport 2015
Mazda 5 Touring 2006
Mazda 5 Touring 2007
Mazda 5 Touring 2008
Mazda 5 Touring 2009
Mazda 5 Touring 2010
Mazda 5 Touring 2012
Mazda 5 Touring 2013
Mazda 5 Touring 2014
Mazda 5 Touring 2015