actually went to Voss performance this week to have my backdraft serviced and gone thru.i asked him what I should do to it ? eric voss the owner said change the
oil and drive it .said coyote motor needs nothing .so a shop did not even want to take my monie because the coyote motor is a everyday drive it and forget about motor. personally I didn't want the blower but it was already on the car, bought used .wanted a coyote motor to drive without any hassles . Voss is actually a superformance dealer.but work on backdrafts too.