I changed out the tips on my 03 Jetta TDI to a PP205 (I think) and it was night and day on power. After a tank I ran the numbers and was amazed that I went from 38mpg to 42mpg of very hard driving. Is there a tip that could be put on my Cummins injectors that would give me a similair result? I know I probably won't get 4mpg better but how bout 2 or so plus better power?

 

im wondering the same thing so maybe you will get a reply

 

I got a 1.5 to 2 mpg improvement when I put in Don M's F-1 Flux 40HP injectors. It sure woke up the bottom end also.