2nd Gen EDM Injectors with reconditioned bodies with higher than stock POP pressures. Why buy recondition instead of new? Well, reconditioned injectors pressure spring has already taken a set (sag) and then we adjust POP pressure for a more accurate and longer balanced injector life, compared to new injectors spring sag once thousands of miles of been put on them, which cause lower and uneven pressure/balance. Core charge applies.