6speedcntryboy

im new to all this muffler delete and cat delete stuff. can you not just pull all that crap weld in pipe and throw a tip on there and call it a day? on the 5.9s of course, i know you cant on the 6.7s

eights88

you will love it. I did same thing on mine. it has a real nice drone at idle and when pulling it has just right soung not too loud but people will look at you.

Mega07

IMO, which I have personally tried both, it sounds awesome with just a cat...now I like it loud but when I took the cat off it was loud and sounded great at idle, but when you got on it it sounded like total busted A$$! I couldnt talk on a phone anymore while driving either but the sound is what killed it for me. I have since welded my cat back on and am very happy with the tone/loudness.

TrinityTrucking

whats up guys,,i did the muffler delete about 4 months ago,,,i love the sound ,,, and now it sounds like a real truck ,,,,,plus i saw that it lowered my egt's by a couple of hundred degrees

Texasimport

I like it. . . .my 06 like your still has the resonator and the kitty. . . .Even towing a 7K toy hauler with windows open it won't make you crazy.

cincydiesel

My Cat was stolen last week. Someone used what appeared to be a cordless sawsall to cut it off. I made a police report and I'm now awaiting a new factory cat thats apparently 2-3 weeks out. I ordered a delete pipe and overnighted to the house so I could drive around town and I love the new sound. Just sucks that I have to put the cat back on

Dodgezilla

I had some dirtbags steal the CATs off a few of our trucks at work a while back. It appears that you can get pretty good money for them if you find a place that won't ask questions when you show up with a truckload of these things....

Muffler delete with the CAT in place sounds awesome. I wish it was so easy for us 6.7 owners......

hivoltage

Maybe somebody will steal mine and leave me a piece of straight pipe and a couple of clamps! I ditched the muffler when the truck was about a week old. I like the sound but sometimes I wish it was louder. I'd like to see my cat gone just for better mileage even if I only got a 1 mpg increase.

Festus

It's very easy........

1) Remove kitty and knock it's guts out
2) Trim edges so that a 4" pipe will snugly slip through the center of both ends of the kitty and weld around the edges.
3) Replace kitty and weld pipe back in. Once the muffler is removed, there is no drone that other's speak of as the "look alike kitty" now acts as a resonator.

This all happened before the first 1K. Love it!

rodboy

Ditto

6speedcntryboy

will pullin the converter give any mpg gains?

wmonroe

I love the way mine sounds with the cat still on but no muffler. There is no drone when towing and it is just loud enough.
Will