New to this. Have a 2004 Mack with a 460 ASET, pretty sure it's the AC because it has the EGR cooler. Been have some problems with it and are pretty sure that it is the EGR valve and possibly the cooler. I know that with the 08 and new you can delete the emissions but i can not find a way to delete them on the ASETs. Was wondering if anyone knew how or where to go to get it done. Any help would be great. Thanks.