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  #1  
Old 08-08-2009, 02:36 AM
Actros617's Avatar
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Bye Bye straight pipe!!!

After having to deal with the dreaded droning that the straight pipe produce i decided to place back my old muffler w/o the kidney things. PEACE and quiet, there was less lagg on acceleration and the turbo spools a little slower but once is running at 2500 RPM just a little tap on the acclerator pedel and it spools up faster than when it was straight pipe and i lost 1 psi of boost. for those of you guys who has a 300SD and planning to do a straight pipe, i would suggest to just remove the resonator instead unless you like a bass like drone at 1500 RPM and a sweet turbo sound at idle than straight pipe it. Though I am starting to miss that sound

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  #2  
Old 08-08-2009, 10:01 AM
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Huh? What's that? I can't hear you.

Jim
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  #3  
Old 08-08-2009, 10:05 AM
toomany MBZ's Avatar
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I had the resonators removed when I had my exhaust system re-done, standard Ansa muffler, works well.
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  #4  
Old 08-08-2009, 10:05 AM
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I had mine off for about a year too. I also put the muffler back on without the kidney thing.
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  #5  
Old 08-08-2009, 10:51 AM
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I told you.But this winter I will take off glasspak,and run it straight.Why? Windows up.
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  #6  
Old 08-08-2009, 11:18 AM
Squabble's Avatar
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is it louder than the sound of wind in your ears when the windows are down on the highway? i just turn my stereo up to cover that, can you do the same with the straight pipe drone, just turn the music up?
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  #7  
Old 08-08-2009, 11:43 AM
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so is that straight pipe for sale now?
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  #8  
Old 08-08-2009, 03:29 PM
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I have been on more of a silent trip lately. I thought it sounded good with the windows down, but when I am on long trips, I don't like to hear it. After putting on the hood pad (which makes a ton of difference) the pipe was the only thing I could really hear. Now I can drive with the windows up and it's nice and quiet.
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  #9  
Old 08-08-2009, 03:46 PM
Actros617's Avatar
Ich fahre dieseltypen
 
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I was thinking of making a two way system, one pipe goes to the muffler one is a straight pipe, using a flap to divert the exhaust.
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Current Garage
2008 Mercedes GL320 CDI 188k mi Repair/Work in progress
1994 S350 160k mi Garage Queen & prepping for repairs
2005 E320 CDI 203k mi Healthy & Daily Driver
1994 S350 357k mi Retried as parts car
1984 300TD 214k mi Blown OM617 Poss OM603 Swap??

Sold
1987 300SDL 200K+
1994 S320 181K mi
2008 E320 Bluetec 127k mi
1999 S420 130K mi
1980 240D 360k mi
15+ Others that has come, stay and gone

GONE, BUT NOT FORGOTTEN
1995 E320 SE 220k mi
1984 300SD 350k mi
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  #10  
Old 08-08-2009, 04:29 PM
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The current issue of Car Craft describes how to install an electric exhaust cut out.

Jim
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95 E320 Cabriolet Emerald green 66k miles
94 E320 Cabriolet Emerald green 152k miles
85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles
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  #11  
Old 08-08-2009, 05:25 PM
Simpler=Better's Avatar
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You can get cable-operated 2" exhaust cutouts for ~$30

The straight pipe exit matters too:
Out the back it's not too bad
Out the side can be kind of loud

As always, adding a turndown tip should help quiet things.

Running no exhaust sounds great for short runs, but would probably be horrible on the highway.

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