Ok, I'm doing the injectors on my car. Figured at 216,000 miles, they're probably worn and it might help score better performance/mileage. Anyway, I need those cute little O rings for the inlet/return lines, and the dealer wants a whopping 20 bucks a ring for them! Come on, it'd be cheaper if they were made out of gold! Anyway, anyone know where I could get those o rings cheaper, and and prefferably a few of them in case I need to remove/replace this mess again? Thanks! :)