WTF

i got them injector seals and "bored" em out, thing is they gave me one box like u see in the projects section and 3 newer lookin boxes but the same part #

so i get em home and the newer ones are now a softer black rubber instead of the stiffer light green. i still went at em with the dremel but there softer and it made it harder to do actually. i got em done but the fit slightly less snug then the green one.

anyone had problems with these ones leaking ?