I have a 2002 supercrew with a flowmaster cat back exhaust. It doesnt have the deepness im lookin for. Does anyone know if they make a straight y pipe from the headers to the muffler that eliminates the cats. I know emmisions would be a problem but I can always put the stock cats back on before I go. Or anyone have ideas of what I can do. Thanks....

 

I dont think that they make what you are talking about and even if they did your truck would run like crap without the catalytic converters, you have to "trick" the computer into thinking that everything is still working right. If you want it to sound deeper why dont you get some headers

 

You can run straight pipe from the headers back. You would have to look into doing it yourself tho, because no muffler shops will do this as it is illegal in I think all states(?). I would look into getting High flow cats instead of removing them completely.

they make em for all pre-smog vehicles(i think 1972 and before)... Just not regulated vehicles.