My 2004 Duramax, in spite of my best maintenance efforts over the last 15 years and 108,000 miles had begun to haze at idle and I knew the time had come to address the situation. Drew's Diesel Repair was the facility that I chose to fix the issue. The solid, positive reviews led me to DDR and I'm happy to say the choice was an excellent one! Andy discussed the issue with me, provided an excellent solution which included replacing my stock injectors with the newer improved SAC type nozzle injectors along with the latest Titanium Series FASS Lift Pump filtration system. Not a lot miles on the new setup yet, but everything is performing well and MPG has also improved. Professional work and fair pricing was provided - would recommend DDR to all diesel owners out there.