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Question about Magnaflow Muffler

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Old Apr 11, 2011 | 12:36 PM
  #1  
aznxkicker's Avatar
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C207 E500
Question about Magnaflow Muffler

I recently installed a magnaflow muffler with no 2nd cat & resonator and it sound really loud and drones inside the cabin so I put back the 2nd cat and the sound level is acceptable. However I've noticed the muffler sound becomes quieter after driving for about a week. It used to have a nice growl sound when i start the engine but right now it just sounds abit louder than my previous OEM muffler. I wonder if this issue is normal and if a magnaflow glasspack muffler is a better combination than the 2nd cat placement or the high flow cat in terms of sound level, droning, backpressure..etc ? My car cannot fit a xpipe as I know this will refine the sound better. Thanks for the advice.
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Old Apr 11, 2011 | 12:54 PM
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kevblah's Avatar
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E90 M3
I think it's typical for a muffler to change its sound within the first week, sort of like a break in period.
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Old Apr 11, 2011 | 01:10 PM
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dynomite05's Avatar
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04 CLK 320 > CLK32K
Yea, there's definitely a break in period. Although the sound should increase and get better, not diminish.
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Old Apr 11, 2011 | 01:10 PM
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2003 CLK 500
Yea same kinda thing happened with my Mustang a few years back. Can you share the info on the muffler, because I am looking for a Magnaflow for my car. Thanks
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Old Apr 11, 2011 | 01:17 PM
  #5  
aznxkicker's Avatar
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i remember once i saw black smoke came out from the tips when i started my engine. Is it normal ?
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Old Apr 11, 2011 | 02:40 PM
  #6  
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03 clk500, 06 qx56
i have a magnaflow exhaust on my suv and it after a few weeks, it actually got louder and there is more drone as well...
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Old Apr 11, 2011 | 03:11 PM
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Mercedes CLK 320 W209
What engine size do you got? Was it you that had the 200K? Nice car btw.
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Old Apr 12, 2011 | 12:10 AM
  #8  
aznxkicker's Avatar
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Originally Posted by mikata
What engine size do you got? Was it you that had the 200K? Nice car btw.
mine is 1800c.c inline 4 cylinder ..maybe thats the reason
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Old Apr 12, 2011 | 12:33 AM
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Originally Posted by aznxkicker
mine is 1800c.c inline 4 cylinder ..maybe thats the reason
I'm no expert but I don't think you'll get any deep growl from 4 cylinder engine. what do other fellas say?
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Old Jan 5, 2012 | 01:11 PM
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Originally Posted by mikata
I'm no expert but I don't think you'll get any deep growl from 4 cylinder engine. what do other fellas say?
You wouldn't get the deep tone on a 4 Cylinder engine, more on V6 and definately on a 8 cyclinder V8 engine.
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Old Jan 5, 2012 | 01:55 PM
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LOL @ reawakening this thread
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Old Jan 5, 2012 | 02:54 PM
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Yeah, this was a dusty one.
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