YUP THATS RIGHT, THE AFC IS WAY BETTER THAN THE FMU, BUT IF YOUR ON A BUDGET WHY WAIST YOUR MONEY ON A AFC IF YOUR BOOSTED LITTLE PSI, THATS WHAT A FMU IS GOOD FMU, BUT FOR ME, I GOT A AFC IN MY CAR, BUT I BOOST 10-12 PSI DAILY. I HOPE YOU HAVE SOME CAM GEARS SO YOU DONT GET NO OVERLAP.