![KYB Gas-a-just Shock Absorber Fits select: 2006-2013 LEXUS IS](http://roco4x4.com/cdn/shop/files/865d31c6b979e3bac0a01ec2b46b2ff9_8fc92412-5d9b-420e-9c1c-e7a3f4b9688d_800x533.jpg?v=1715344451)
![KYB Gas-a-just Shock Absorber Fits select: 2006-2013 LEXUS IS](http://roco4x4.com/cdn/shop/files/865d31c6b979e3bac0a01ec2b46b2ff9_8fc92412-5d9b-420e-9c1c-e7a3f4b9688d_800x533.jpg?v=1715344451)
Description
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 & 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.