Exhaust options?

jinstall · **Posted:** Mon Mar 08, 2010 9:11 pm

I have a Magnaflow as well, very short time to install, 20 min I think it was from start to finish. The only issue is that it rubs on my trailer hitch, the same reason I got it for so cheap the previous owner had the saem issue.

coldkj · **Posted:** Tue Mar 09, 2010 3:32 am

Aeroturbine 2525 and no cat. Mileage on summer diesel (we get that about five months here) at fwy speeds 28 to 30, lots of other modifications. Prompt turbo response was the most impressive change I noticed.

Tinman · **Joined:** Mon Apr 10, 2006 10:45 am **Posts:** 308

What's the part # for the Magnaflow and MBRP? Are ya'll using the v6 version? I don't see a CRD model.

RTStabler51 · **Posted:** Tue Mar 16, 2010 8:08 am

Tinman wrote:

What's the part # for the Magnaflow and MBRP? Are ya'll using the v6 version? I don't see a CRD model.

All the exhausts are the same. I have the V6 MBRP, I posted the P/N in another thread, but don't recall it right now.

evolDiesel · **Posted:** Mon May 24, 2010 10:37 am

Deleted the cat & stock muffler and replaced with 2.5" pipe.

Pros:
low end torque, turbo spool, and pedal mashing performance are impressive. I would put the gains up there with the GDE hot flash. In other words, much more than I expected.

Cons:
LOUD. It's quiet at idle and reasonable on the freeway, but when I get on it - it sounds as if I left the back glass window open.
SMELL. I don't mind it though. It's what diesel trucks smell like and reminds me of my 2003 F250.

Question:
For those of you that have done what I did, except you tossed an aftermarket muffler in there... which AM Muffler did you go with, and what is your impression of the performance/sound? Do you recommend what you did? I'm considering a cheap/simple 2.5" muffler to quiet it down a little... but don't want to lose the craziness

Jack

geordi · **Posted:** Mon May 24, 2010 11:44 am

I went with a Flowmaster 2.5" all-metal muffler from the local parts hut. About $80, and not bad on the noise reduction at all. It is a LITTLE louder than stock, but not bad. IIRC, it maintains the full flow and reduces the sound by redirection and reflection inside the muffler without creating backpressure. I like it.

stoutdog · **Posted:** Mon May 24, 2010 12:01 pm

I went with the Magnaflow 12226 2.5" muffler. Side In, center out, straight through.

dieselsmoke · **Posted:** Mon May 24, 2010 12:36 pm

currently i run a 3'' all the way back, no muffler or cat. I dont get any drone! i thought for sure i would but nope. I made mine out of some spare stainless 3'' i had lay'n around from another fabrication. Just got out my miller and tig'd it. very time consuming considering i had to prep the stainless to prevent contamination, run low heat so i wouldnt burn through. I dont have a pipe bender or anything like that but i had some time and i just cut a ton of angles and tacked them together, welded it up. it looks really cool and sounds ok. sounds like a 4 banger with a turbo to be honest. very raspy so to speak. I dont know what it would have cost if a shop would have done it. a bunch im sure. but b/c i had everything i considered if free.....

dieselsmoke · **Posted:** Mon May 24, 2010 12:37 pm

oh also, the fumes are hard on the eyes if you have to stand behind it for a while. they will burn for a while to be honest.

mackruss · **Posted:** Mon May 24, 2010 12:41 pm

stoutdog wrote:

I went with the Magnaflow 12226 2.5" muffler. Side In, center out, straight through.

That's all i've got, no cat and a fairly large rear free flow side in and centre out, no resonance on the freeway, bit louder than stock but
much better breathing.

Rixram · **Posted:** Mon May 24, 2010 12:47 pm

dieselsmoke wrote:

sounds like a 4 banger with a turbo to be honest. .....

Not trying to cause argument, but it IS a 4-banger with a turbo. LOL

Joe Romas · **Posted:** Mon May 24, 2010 12:56 pm

Rixram wrote:

Pardopn my interruption, but has anyone deleted the OEM muffler and replaced it with a glass pack? Curious if it'd give a mileage boost and a sound mod as well.*

Glass packs have been discussed here a few years ago and the consences was they were worse then the original. Some including Web master Darby have replaced the muffler with a stright pipe and like the results.

dieselsmoke · **Posted:** Mon May 24, 2010 1:00 pm

Rixram wrote:

dieselsmoke wrote:

sounds like a 4 banger with a turbo to be honest. .....

Not trying to cause argument, but it IS a 4-banger with a turbo. LOL

OK, well sounds like a freakn N/A honda with a turbo kit. how about that.

dieselsmoke · **Posted:** Mon May 24, 2010 1:01 pm

I thought that in my head but it didint come out LOL, it meant it sounds funny...

Rixram · **Posted:** Mon May 24, 2010 1:24 pm

Joe Romas wrote:

Rixram wrote:

Pardopn my interruption, but has anyone deleted the OEM muffler and replaced it with a glass pack? Curious if it'd give a mileage boost and a sound mod as well.*

Glass packs have been discussed here a few years ago and the consences was they were worse then the original. Some including Web master Darby have replaced the muffler with a stright pipe and like the results.

Thanks Joe. That is good information to know. Looks like I'm putting the kabosh on that little idea, then...

Rixram · **Posted:** Mon May 24, 2010 1:25 pm

dieselsmoke wrote:

Rixram wrote:

dieselsmoke wrote:

sounds like a 4 banger with a turbo to be honest. .....

Not trying to cause argument, but it IS a 4-banger with a turbo. LOL

OK, well sounds like a freakn N/A honda with a turbo kit. how about that.

lol

geordi · **Posted:** Mon May 24, 2010 3:09 pm

dieselsmoke wrote:

Rixram wrote:

dieselsmoke wrote:

sounds like a 4 banger with a turbo to be honest. .....

Not trying to cause argument, but it IS a 4-banger with a turbo. LOL

OK, well sounds like a freakn N/A honda with a turbo kit. how about that.

...As opposed to a N/A Honda without a turbo? Cuz with the turbo, it isn't "naturally aspirated" anymore.

Or maybe you meant a N/A Honda with a NOS kit, since that is what they usually all have to have to do any go-fast performance... :goink:

dieselsmoke · **Posted:** Mon May 24, 2010 4:33 pm

yea, they are pretty lame. anyways......there is a good vid on here somewhere that is link'd to youtube. ill try to find it and post it for the man

dieselsmoke · **Posted:** Mon May 24, 2010 4:39 pm

http://www.youtube.com/watch?v=8VYhC8tfVvc

here is the vid.

i think we all can agree that even with no traction this is a quick little crd, like most others with a hot tune.

evolDiesel · **Posted:** Mon May 24, 2010 5:43 pm

dieselsmoke wrote:

http://www.youtube.com/watch?v=8VYhC8tfVvc

here is the vid.

i think we all can agree that even with no traction this is a quick little crd, like most others with a hot tune.

That thing definitely looks quick.

I have the GDE Hot tune and now the straight pipe and I seriously can't keep the rear wheels from spinning. And I'm running some seriously wide rubber (275's on 20's). But, I pretty much sold on installing an aftermarket muffler. It sounds too "woofy" when I mash the go pedal.

I really wish I would have dyno'd it at stock, then GDE, then GDE + straight pipe. All I have to go on is "feel".

Exhaust options?

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