Hello,

Thanks for the help. I've bought a walbro 255lph fuel pump to add to my 2002 subaru wrx. With my mods, will i need a tune after I install the fuel pump so my car will run right?

Or can i just install the fuel pump and wait a couple of weeks for a tune with drivability unaffected-?


I'm also installing an eugo wideband to monitor my a/f--- I am going to install this first and see how the a/f changes before and after the fuel pump. I'm guessing i'll run rich??