Ive been wondering what the difference in loudness is between installing the full cat-back or just the mufflers (using the American Thunder catback vs just the Delta mufflers on a 4.6 as an example) big difference or no?
Man I wish someone would reply. I was wondering the same thing. I have the new 40 series flows on my car and like the sound, but wondered how much better it would sound with the full cat back.
yes the catbacks are louder than the junky stock. the head tubes are crimped on the stock pipes. take a look at them yourself, they're trash, not to mention they weigh a lot. the 2.5 inch pipes makes a big difference, and in my opinion is well worth the $
just make sure you get the stainless catbacks from flowmaster (if they offer stainless)... the stock system is stainless, and you dont want to "downgrade" on any aspect, especially if you're paying for it and installing it yourself.
:OT: this is off a bit, but still pertains a bit i think...... what kind of power difference is there from only mufflers, to a full cat-back?????????
i'm getting ready to get my full cat-back, but i have always been curious of how much of a power difference there was between the 2