Yeah, if you are really into 12V Cummins sound, you are SOL it seems with a CR. It seems like nothing you do makes it sound decent, it always sounds more like a gas motor than a 12V.

 

does it have something to do with the multiple injection events?

 

Does it really matter if you have a 5 inch exhaust on a truck that has no mods on it other than cold air intake?

Jake

 

I also am interested in the silverline due to the price... under 500 where I found it

 

I have the 304 Silverline 5'' on my 06.. On the CR's, I've tried the straight piped 4'' on my 05 dually. It was like that for a very short time. It sounded very raspy.. It was loud, but not in a good way. I then threw on a 4'' walker straight through muffler from NAPA, and it has a decent sound with a loud whistle sound. Here's a link.. Scroll down to PRO 2, and click on the black dually running by itself. The truck also has a stock air intake and filter.

http://nhrda.com/DragRacingVideos/DRV-20071014.htm

I really like the sound of the 5'' straight on the 06. It does have twins on it, so they muffle the sound a lot.. If you scroll down to the bottom of the page on this next link to the heads up division, click on the dark red truck racing the black and silver truck. It's hard to tell the sound though because of the great sounding 12 valve next to it..


http://nhrda.com/DragRacingVideos/DRV-20071014.htm

I really liked the sound of my old 12 valve with a straight pipe.. Hard to beat that..

 

ive got 5 inch on my 03 and its really loud. i had 4 inch on my old 03 and now that i have 5 inch on this new one i wouldnt go back. 5 inch all the way

 

I want to go the 5” route, but I’m stuck on the SS vs. aluminized system. I have always been a SS or nothing kind of guy. But, the MBRP system is only available in aluminized tubing. I know it shouldn’t be much of an issue, especially living in CA, no snow/salt etc. Am I missing something? Does it really matter? I really want to stay with MBRP. So, what do you guys think?

Thanks,

Jacob

 

I am looking at silverline mbrp and magnaflow all 3. I have read and heard that either mbrp or magnaflow one has it setup where the muffler actually necks down to 4" and I do not want that... I want 5" from turbo back with muffler and either a 5-6 slash tip or 5-5, 5-6 turndown. anyone know anything about this??