Here is the truck: 2004 F-250 6.0 with an airaid intake system a MBRP turbo back 4 inch exhaust with dual 6 inch stacks no cat. No tuner yet everything else stock. I recently did an EGR delete and replaced all of my injectors. I noticed after the recent work I have lost the jet sound from the exhaust. I am still getting boost which I am monitoring with a scan gauge ll. Any ideas out there? I am sure this has been asked before and hope there was a cure to my trucks ailment.