Cummins ISX Sound Mod

Do you have a video review of this mod? Fill this form and share a video. We share max 3 videos for one mod. Your email address Youtube video address By clicking the button "Send" You consent to have this website store submitted information. Cummins ISX Sound Mod for Peterbilt 389 Truck The archive comes with two mods, one “normal” like on the video, and a “lowered” one, in this one, the turbo and air gear change are lowered by 50-60% Author: Kriechbaum