MagnaFlow Exhaust...Any Good??

[Ncostello]

I'm ready to get a muffler back on the truck. I've had my fun with a 3" straight pipe and would like to get back into a mellow deeper tone. Thus I'm ready to get a 4" system with a nice muffler. How does the Magnaflow Stainless system work out? I like the stainless and the welded on hangers.



What I'm not sure on (for any system really) is the mufflers. How does stainless steel wool do for a muffler? I'd think it would eventually burn out like a glass pack. I'm prolly wrong. Does anyone have a system that uses chambers instead of a packing. I'd like to stick with a straight thru muffler to keep a little turbo sound back there and the deep big rig sound.



I'm not trying to make it as quiet as a Toyota car... just something more mellow and less raspy. Thanks!!

 

[cArNiVaLwOrKeR]

Call city muffler in ok. I bought mine there 4inch ss w/o muffler,sounds cool. best price anywhere around

 

[Jeff Clark]

I have the 4" stainless MagnaFlow on mine and I like it. Sounds real good outside the truck and pretty quiet inside.

 

[mattymac]

Originally posted by Jeff Clark

I have the 4" stainless MagnaFlow on mine and I like it. Sounds real good outside the truck and pretty quiet inside.

couldnt agree more! Mines loud outside when I stomp on it though!

 

[Ncostello]

I'm mostly concerned about no drone, quiet idle and mid level sound... and having a muffler thats not going to become clogged with soot over time. I'm just curious how the steel wool packing keeps from getting clogged with soot.

 

[TinyInOhio]

I installed the 4" Magnaflow system from Rip Rook in February, and I love it. Really mellowed out the sound of the truck, looks great, and is quiet in the cab. Would do it all over again in a heartbeat.

 

[Jeff Clark]

Originally posted by Ncostello

I'm mostly concerned about no drone, quiet idle and mid level sound... and having a muffler thats not going to become clogged with soot over time. I'm just curious how the steel wool packing keeps from getting clogged with soot.

If mine has drone, I can't hear it over the whine from the turbo (open element AFE and no silencer ring) plus I have added some sound deadener. I sounds very similar to stock at idle but sounds great at any throttle level. I get me wife to hammer it down the street just so I can sit on the curb and listen to it (she thinks I'm nuts). The muffler is pretty much a straight through design, so I don't think it will clog up.

 

[americana]

got it love it

and it was an easy install. if i did it again i'd delete the muffler. too quiet. not what the wife says...

 

[Boondocker]

Magnaflow Muffler

I have the stainless Magnaflow muffler on custom 4" aluminized pipe. The Magnaflow is packed around the 4" diameter straight through perforated tube. Other mufflers such as Allied or the Diamond Eye are not packed. I have no sound comparison between packed and unpacked mufflers but expect that unpacked would be louder or at least different.



I would rate the Magnaflow as quiet. I was prepared for something louder, so if it gets louder with age, that's ok At idle, I would say it is no louder than stock, just a deeper tone. At full go, such as pulling my 5th wheel trailer up a grade at 2400 RPM, you just need to pause the conversation unless you want to yell over the roar. And that's with a good amount of sound insulation. Again, stock isn't exactly quite under that condition either.



As for drone, I think I have a mild drone around 2100 RPM. I added several pieces of angle iron to the straight sections under the cab, that takes some of the ring out. Sound insulation takes care of the rest. My pipes are fully welded and the hangers are tight, which I think helps reduce drone potential as well.



My reasons for going with a 4" system (including BHAF) are EGT reduction and sound quality. Notice how I always put EGT reduction first Cool down time is faster and it usually gets below 300 degrees, where with the stock system it rarely got under 300 within a minute of normal driving. When pulling hard, such as Teton Pass at 16. 9K GCW, I barely hit 1200 degrees and easily stayed under 1100 with a little throttle control. In the RV parks, where there were lots of Dodge diesels, mine was the really good-sounding one good-looking too when my wife's driving



Neil

 

[Tejasdge]

Neil,



What length was the Magnaflow you went with and do you know what the part # was?

 

[Boondocker]

part / length

Neil,



What length was the Magnaflow you went with and do you know what the part # was?

The part number might be 142733, that's what's on the invoice. The muffler is 20" long. A 30-incher would easily fit under the short bed if you want more muffling.



Neil

 

[fourwhls]

After reading tons of exhaust threads and doing some serious price shopping, I too went with the magnaflow system. It is sitting in a box in the garage waiting to be installed. Appears to be a well made system, clean welds. Hopefully I will get it on this weekend.



I bought it from city muffler and performance. I found them on ebay, then called them direct and ordered. They gave me a better price than listed on ebay. Prompt (free)shipping and well packaged. Their websie is http://www.cmpchips.com.