Is ...intelligent suspension and,it's sucks. To,much crap to break. I had 2015 155 S and that just uses coil springs.....no computer modules and sensors to,fail. The cats ads,model is the AS with fox podium clicker shock that come with the 260hp engine. Not that common but you can find low your clean ones of,your ready to,road trip. I went with the S 155 because I wanted reliability and found a 2015 with 9 hours on it. Running 87pump gas is nice too. The 260 are thirsty on,premium.