So here it goes. I have an 07.5 lmm 16" sas swap cen cal style. I know some of u guys probably hate it but I like it so no hate please. I already have a pretty big efi live tune on it afe intake and boost tubes and straight pipe exhaust. As it is now it runs great just 1 issue when I stay in it for a long time I get the low fuel rail code. I think that's pretty typical though for the tuning and lack of lift pump. Now I just started getting a code for the variable vein sensor witch iv read is probably just my veigns sticking. At this point if I'm going to pull the turbo I don't wanna go back to stock. So I was wondering what would be a good upgrade along with a lift pump. I don't daily drive it but I would like it to be nice most of the time and nasty when I want. Any suggestions?