This mod is open pipe sound for SCS and Vad&k DAF XF 105 Feature: Open pipe sound for SCS and Vad&k DAF XF 105 DAF gear change and retarder sound Unique DAF turbo blow off valve sound Custom sound attenuation for realistic sound fade off Custom sound orientation for realistic sound from different angle Custom sound distortion for realistic exhaust tone depends on how much throttle pressed Version 1.0: Initial released