,,,,,one main possible issue is with the threaded adapter for the fill tube on the aluminum pans,,,this causes the fill tube to be farther away from the pan than stock & will hit some peoples exhaust(mainly long tube headers),,,, some try to bend it (be very careful if attempted) or use the lokar flexible fill line ,,,,,,,,---when the headers went on I already happen to have a temp gauge plumbed below the fill tube with the same threads & simply swaped the fill tube to the lower hole to allow the bend to clear the headers <<< see pic ,,,, note..dipstick reading is different if this mod is performed