brianw0048

iTrader: (1)

correct me if I'm wrong, but as long as you have the cats in place, you should still pass smog testing? The muffler only serves to tone down the noise level and shouldn't have anything to do with your emissions.

rcjr912

Think i might do the same this weekend, 2.5" pipe a turn down and some clamps is all you needed im assuming?

RajunKajun59

Yup, it will slide right into the stock clamp after the res. I took a piece of metal strap and used it to hang the pipe from one of the braces under the truck, it probably was overkill, but I did not like having it cantilevered off at the flange.

For what it's worth the 3" has a deeper richer tone to it than the 2-1/2.

Grizzy44

What does deleting the muffler do opposed to deleting the resonator?

My exhaust I put in im pretty sure has muffler but no resonator because I wanted it loud

RajunKajun59

On the stock system, deleting the resonator and keeping the muffler just makes it a little more raspy and a tad louder, but still pretty inaudible, deleting the Muffler and keeping the res, make it as loud as an aftermarket system with out drone, just cheaper. The factory resonator is a straight through muffler.

NukeWelder

Stock muffler with a resonator delete sound tinny with no bass/tone to it. Just like RajunKajun said, the muffler delete with the resonator still on gives it a nice snap/bass tone.

Grizzy44

Ah makes sense, thanks guys

I got the metal mulisha Gibson exhaust recently and deleted resonator and there is definitely drone in the cab but something I could live with, other people not use to it hate it tho

RajunKajun59

Here is the cold start vid guys. I went to my dead road several times over the weekend and it wasn't so dead, so I couldn't get any fly bys or take offs, without interfering with some RC hobbyist Fly bys and take offs.

EcoBoostJake

I know this is an old thread, but I am interested in deleting my muffler while keeping my resonator. The goal is to keep my costs low, and still get a slightly more throaty rumble from the 5.0.

My biggest concern is I still have 20k left on my drivetrain warranty, and I would wait if doing this will void what is left.

My second concern is if it will still pass emission testing.

If anyone could weigh in on this subject, I would appreciate it.

RajunKajun59

If you don't mess with the cats, your emissions should be fine, the whole system after the cats is straight through, with baffle tubes(or helmholtz pipes - technically). You warranty shouldn't be affected either.