Yes or NO on the Muffler

[jserman]

well I put the muffler on because I need to get a 4-5in coupler and it was midnight and I need my exhuast on... I still have enought pipe to delete it so I am not worried.....

 

[neil_04]

mufflers arent for cars they are for anything that uses gas. but now that i think about it i ran dual cutouts on my gmcyukon. but yea loose the muffler and cat

 

[orion_134]

A chambered muffler KILLS a turbo's performance, not only on a truck but a car as well. Turbos do not like back pressure at all. I unbolted my muffler, little performance difference, better sound. Unbolted the cat, over 1 mpg difference and a HUUUGE sound difference. The turbo really talks to me now
Jesse

 

[StrokerAce7.3]

Mufflers are for cars.

, what can you say, the mans right.

 

[neil_04]

i love my open exhaust, its great next to vans and suvs with flat side comming off the stop light

 

[Race22]

Go without. It is not that loud. I too run with the right rear window down just to hear the turbo spool. Love it.

 

[orion_134]

Anyone know the legality of a cat on a diesel? My truck and my buddy's 05 Ram 2500 came with a cat, but my other friend's 04 2500 didn't come with one and I hear it isn't necessary on a diesel...anyone in the know?
Jesse

 

[mille-ryan]

It depends on your state emission laws.I beleive if it vca,e with the truck for that mosel year it stil has to be there, well at least in Colo.

 

[JohnBoyToo]

Since you asked....
Federal Law basically says "If it came with one, ya gotta keep one"
and from all I've heard it can be a large fine for messing with it...
http://autos.yahoo.com/maintain/repairqa/exhaust_muffler/ques081_0.html

but like the article says - only if'n ya get caught

 

[Shadow_Grey]

Anybody know the part number for the cat delete test pipe? I have an 05 but I heard the 7.3 test pipe works on the 6.0 also. I want to keep the cat and pipe in tact so when I sell the truck I can put the kitty back on.