Muffler neck size question???

mberlin74 · 08-30-2006, 03:25 PM

First off let me say I am thinking about getting just a muffler install and not the whole system. That being said, a guy at a muffler shop just told me that it may be a good idea to get a muffler with a 3" in and out that he can reduce down to a 2.5" so it will fit the stock pipe. His reason was that if I wanted to go with a full sys later, I could keep the muffler and go with a 3" sys. Any thoughts or suggestions on this??

sudden urge · 08-30-2006, 07:25 PM

That doesn't make sense to me. If you later decide on a full system, that would probably be a catback which includes a new muffler with the kit. The current 2.5" pipes are more than adequate for 350 hp.

ttugrad95 · 08-30-2006, 10:36 PM

That may or may not be a good idea on other vehicles but this engine needs back pressure. The truck would run like crap with 3" pipe.

my2006titan · 08-30-2006, 10:45 PM

the truck will not run like crap with 3" piping. it will actually be better. the only thing you need to make sure is not to touch your y-pipe so you keep your pressure for the low end torque. i got a 3" piping from the y-pipe back with a magnaflo muffler and it sounds nice. i have a little more torque and truck is a little more responsive...