That's kind of a tough one. Tubi's are pretty quiet, imho, but without the x pipe supersprints would be too. With an x pipe, ss is definately louder. You don't need software with only mufflers.sublimaze said:I need help deciding which route to go, SS w/o X-pipe or Tubi.
Also, I've read where you need a chip upgrade if you install headers; that wouldn't be necessary if I just install one of the above two items, right?
Travis, i think Dave is saying sw is only needed with the headers, not the cat back system.M5Kid said:Dave,
Yep, right on. For optimal performance and engine reliability software is necessary.