I will be buying an ls6 intake shortly and it will be coming with injectors, question is will they plug right into my harness? as of right now fuel system is stock up front.

if not which injectors might be a good upgrade that would possibly plug right up?

 

If you have the truck style connectors then those injectors will not work. I changed the connectors on mine to the car-style. The truck style injectors are shorter and fatter, the car-style and longer and skinnier. You can only go to 42lbers with the truck style stuff. The car style injectors can go up to 60lbers at 3-bar (43.5psi). I would stay with the car-style injectors and just change the connectors. I got a set of 8 connectors for about $14 back when i did mine. Cheaper than a whole new set of injectors.