View Full Version : 2 in 1 out mufflers
03-07-2008, 12:26 PM
Does Flowmaster or Magnaflow (or anyone else for that matter) make 2 in / 1 out mufflers? I see on their website 1 in / 2 out. I've got an 02 Sierra Denali and it does not have a "Y" pipe before the muffler. It's a 2in/1out muffler. I would like to keep it looking stock and would be pretty neat to do a 2in/1out muffler vs. adding a Y before the muffler. I don't want it too loud, more like a 50 series. any help would be great.
03-07-2008, 12:29 PM
YES... both make DI/SO mufflers. Magnaflow is reversible - straight through design. Flowmaster is directional, so you'll have to specify DI/SO when ordering. I'm certain that the other manufacturers do as well.
03-07-2008, 12:40 PM
Ok, great. Thanks! Do MagnaFlows tend to be more mellow? (Hard to tell on internet clips.) If so, what would you recommend.
03-07-2008, 02:10 PM
magnaflow will have the sound vary due to case length, the longer the length the more mellow and quiet it will be. At the same time, it's a straight through design so it will breath a lot more then a chambered muffler will
03-07-2008, 02:12 PM
I just got a DI/SO 18" Magnaflow put on yesterday and it has a nice mellow sound compared to my Super 40's I had. Granted I did like the 40's better because they were louder, Ive notice a huge gain from going from true duals to the setup I have now.
03-07-2008, 02:30 PM
Ok, great. Thanks! Do MagnaFlows tend to be more mellow? (Hard to tell on internet clips.) If so, what would you recommend. Prior to my current setup (Stainless Steel 2.5" DI/3" SO Magnaflow cat-back), I ran a DI/DO DeltaFlow 50. It was nice and mellow. I've been very pleased with my Magnaflow system which is quieter than the Flowmaster I had previously, especially when comparing them at cruise. Both speak well under throttle. The muffler case size on my cat-back is 5"x11"x22"
Here's a link (http://www.autopartswarehouse.com/search/?Ntt=M6615701&N=0&uts=true) to where I purchased mine - much cheaper price than the Magnaflow site lists them.
03-08-2008, 09:47 AM
Awesome, thanks for the input, guys.
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