I can vouch for the MagnaCharger. had 90k on the beast before experiencing issues with the stock trans and torque converter. straight out of the box and installed it comes with an intake manifold heat exchanger, big injectors, second fuel pump as H2Sick stated. Its been bulletproof for that mileage. I had the blower rebuilt at 95k because of the air intake line breaking and sucking dirt through it while doing doughnuts in a dry lake bed.