Tapped for about 5000 miles,untapped for about 3000miles,because of Catcher,don't want to stress the vp and i am quite happy running the Catcher without the special version. ( comp is still hooked up in EZ mode/turned off, just incase of problems and i have to change back to stock---still need a boost fooler with the larger sticks). I also run lots of additive(power service here too)-----PS---MUNDGYVER,how do you like those centramatics,do they work,worth the $$$,i am thinking about a set ,just want an honest opinion. THANKS---DW