as the title says, can this be removed .it looks like another air leak site. and if removed what was used to plug nipple on injector fitting. also can return line to ip be done away with. pics would be nice

 

I'm not sure if the lines can be removed because they are there to do exactly what they are made for return fuel. but I wouldn't anyways I know they sell kits to replace all injector fuel returns and all the line and clamps to replace your old ones for about 50 bucks, that's how much I paid for mine.

 

if you remove them and dont have any sort of cap on the injectors u will have excess fuel spray everywhere.