3 inch muffler recommendations

[jeffscarstrucks]

I am finally on the path to make my old truck run better and now I am doing the exaust. I have all of the tubing to do 3 inch all the way back but I am not sure what muffler to use. As always I am coming here for an informed opinion as to what really works well. I am also afraid to ask how obnoxious is a 6.5 with NO muffler? Thanks in advance, JEFF

[Dvldog8793]

Howdy
I have a 3.5 system with no muffler. It is pretty loud, but not nearly as loud as some of the 4banger rice rockets running around. I started with a JK muffler turned the proper direction then turned it backwards the removed it. Straight out has the best results with not much difference in noise.
Have fun!
L8r
Conley

[G. Gearloose]

Go no muffler.

My 2nd choice would be Dynomax straight-through race series. Very strudy, and well built.

[Warren96]

The stock downpipe needed some help it was badly distorted,but ordering a new one when it was under warranty was better .I tried a glasspack (look in one end - out the other)But I didnt like it because it was too loud.Could also hear a lot of turbo whine,made it sound like a garbage truck.Also caught the attention of our inspection stations,and the police would give me second looks when I drove by.By the why the MPG's stayed the same! Just my .02, your results my vary.

[moondoggie]

Good Day!

"...how obnoxious is a 6.5 with NO muffler?" Our Sub has JK's 3.5" system. JK's muffler is maybe (guessing, I'm not going out there to crawl under it) 12" long & 6" around, & you can look straight through it. How does it sound? With the stock system, you were aware you were driving a diesel; with this system, you are not - the exhaust covers it. If we open the right-side windows, especially the right rear, you hear the turbo whine. I judge that at least 98% of Page members would find this exhaust noise not only acceptable but would like it; I don't - I'd rather not hear the engine at all at highway speeds (like my pickup with stock exhaust & the Gear Vendors engaged).

Blessings!

[jeffscarstrucks]

Well It's Saturday night and I'm finally in for the night. 11 hours, 2 10 foot pieces of 3 inch tubing and a new Flowmaster cross over and down pipe and $230 later I have a semi-loud free breathing system. After a little TIG and MIG welding, drilling and tapping and plasma cutting, and a lot of thinking I decided to forego the muffler all together (as per dvldog's post) so I hope it is a good choice. I do like to hear the whine but I'm a little worried about how loud it will be under a load while towing. I used band clamps on the tail pipe to mid pipe joint so adding a muf will be an easy install if I decide to go that way. On my short test drive I did notice that it seems to rev faster than with the all stock system. I will keep you posted and thanks for the input!