And dont use fuel line or o-ring material for the deflectors. Just use the OE parts. If you remove the exhaust fillers you will have all kinds of runability/power curve issues. The only thing I do with fillers is have the block and filler blocks milled flat and level to insure proper sealing. They are a tuned exhaust. Half the people who are posting these mods and tricks have no clue and are just talking,,,remember with mods, if you change or delete something, you usually have to change something else to get them to work together. And as Fred says, as the horsepower/mods go up,,,reliability/longevity goes down.