YOU ARE CRAZY. I put my bbk o/r/ x on my 03 gt yesterday. Today I woke up and said hell with it, "im geting flows". I got 40 series delta. I have a system in my car, (two 12 inch Earthquakes) I havent listen to it all-day.
40 series flows+bbk o/r x= eargasm
40 series flows+bbk o/r x= eargasm


. Plus I picked up a solid 2 tenths in the 1/4.