im trying to decide which set would sound better: MAC long tube headers and MAC H pipe? or shortys with h pipe fabricated at a local shop??? because i want that deepest throaty sound for my 05 V6. thanks for the help

 

Deepest sound is going to come from long tubes, they're going to be much more noticible than the shorties. Should see a little more gain too.

Just beware emissions since the long tubes will remove the cats.

 

Why would long tubes remove the cats? There are a couple set up that offer cats and long tube set up.

 

The Mac LT's don't have built in Cats in them, and those are the only LT's made for our car.