WELL IT'S A DONE DEAL I JUST GOT MY TRUCK BACK FROM THE SHOP.I HAD HEDDMAN HEADERS PUT ON, TO SOON TO TELL IF IT WAS WORTH THE $$$. BUT I PLAN TO DO SOME CRUISEING TOMOROW. NO DYNO JUST A SEAT OF MY PANTS EVAL AND TO . MONITER THE MPG. MONEY WELL SPENT OR ( DON'T WANA THINK ABOUT IT ) I'LL LET YOU GUYS KNOW.