ok guys here's the setup 291,000 miles on my 97 just installed some 370's and noticed a nice power increase but was running 40 lbs on stock holset so decided to upgrade to a dd jammer now i've got 4" exhaust and a afe intake kit should i bother with new dv's? how hard is the install? injectors took m3 45 minutes my fist time trying something like that so i guess i have mild mechanical ability. also does anyone know a pump shop in central califonia i want some timing done too since it's still set at stock. any info woud be great thanks fella's