I checked all 6 injectors for $70 which includes disassembling one and cleaning it. If you can get the tools, it is much better. think about this. all 10 times you use the DP, can you be sure that you have done enough? I took the injectors out at 100K and I KNOW I have done it right.

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01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow