3. & 4. To ensure the base of the MagnaCharger didn’t interfere with the intake valley cover, we swapped it in favor of the new MagnaCharger piece. First, we had to remove the oil pressure sender and remove the eleven 13mm hex-head bolts, then the factory cover could be pried loose. You can see the MagnaCharger unit (right) uses female Allen bolts with a beveled head to sit flush with the new cover for a lower profile.