i have had my header on for over a year and so far has not leaked at all.and it did help power out,and with the tri-y i even gained some seat of the pants power down in the mid range.

87 dodge power ram 50,35" tires,5 1/2" total lift,4.6 gears,lockers front and rear,Rancho RS5000's,custom front bumper,custom rock sliders,cct extended diff breathers,75 amp alt(40 amp stock),thorely header,K&N,wheeled hard...