Larger Exhaust and noise

[ISurvivedNMU]

I am looking for personal experiences with adding a 4" exhaust systems and the increase in the noise in the cab on a 6.0. I am looking at keeping the cat, and running the rest of the system.

Who is the best, and who is the quietest.

can you get the best quality, freeflowing, and quit system in one package?

 

[Max Power]

I just installed a MBRP 4" on my duramax and I removed the cat. There is VERY little extra noise in the cab. I installed the muffler in the direction that reduces noise (opposite of their directions) and at cruising speeds you do not notice any extra noise at all.

In my opinion if you keep your cat you won't notice any difference in the cab. Personally I think getting rid of the cat is the most important part of the upgrade.

 

[6ltrMike]

I love my 4inch exhaust!!!

It has been the best thing that I have put on it yet. I kept the cat on mine but plan on taking it off after warranty expires. The turbo whistle is awesome. it also gives it a deep throaty sound. I suggest putting on exhaust you wont be dissatisfied

 

[rgdillon]

I don't think that you will notice any noise level in the cab over what you have now. I have the Silverline cat back system and unless I put the windows down - it's not noticed.

Ron

 

[Swany]

I am looking for personal experiences with adding a 4" exhaust systems and the increase in the noise in the cab on a 6.0. I am looking at keeping the cat, and running the rest of the system.

Who is the best, and who is the quietest.

can you get the best quality, freeflowing, and quit system in one package?

the quietest???? It's a diesel for pete's sake! Try running some super swampers, you'll never hear the engine!

 

[architect-builder]

I am looking for personal experiences with adding a 4" exhaust systems and the increase in the noise in the cab on a 6.0. I am looking at keeping the cat, and running the rest of the system.

Who is the best, and who is the quietest.

can you get the best quality, freeflowing, and quit system in one package?

Come take a ride in mine. I guarantee you won't want yours quiet!

DPPI, (MBRP now), Duals, no Cat, 03 Turbo!

(However, if you have to have it quiet, MBRP, with the cat, you won't notice a lot of difference with your 05 Turbo).

Barrett

 

[Puddle Pirate]

I am looking for personal experiences with adding a 4" exhaust systems and the increase in the noise in the cab on a 6.0. I am looking at keeping the cat, and running the rest of the system.

Who is the best, and who is the quietest.

can you get the best quality, freeflowing, and quit system in one package?

I have a Silverline T-304 stainless steel 4" on mine. I could not tell you if it is louder then the stock - I could not tell. Mine is cat back and has a free flowing muffler. See pics below.

 

[slingingsmoke]

Mine is cat back .

there lies your problem,,,Kill the Kitty!

 

[BROKER]

Killing the kitty caused our coolant to run over on 3 trucks. CPR on kitty and MBRP DUALS got us better down low response .No drone around that dreaded 2200rpm.

 

[Puddle Pirate]

there lies your problem,,,Kill the Kitty!

Kill the kitty in THIS state and risk going to jail.......That's no joke!