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#1
08-08-2009, 02:36 AM
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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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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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#2
08-08-2009, 10:01 AM
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Huh? What's that? I can't hear you.
Jim
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14 E250 BlueTEC black. 45k miles 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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#3
08-08-2009, 10:05 AM
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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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83 SD 84 CD
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#4
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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My Primary Driver - '85 300CD - 4-speed conversion, 2.47 rear, lowered, euro headlights, rebuilding (not restoring so much) Wife's - '08 Saab Sportcombi Aero Riding a '03 Yamaha Warrior
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#5
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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1999 w140, quit voting to old, and to old to fight, a god damned veteran
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#6
08-08-2009, 11:18 AM
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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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1985 300D - 1984 Euro 280E AMG Clone (SOLD) - 1978 280CE (SOLD) - 1983 300D (SOLD) - 1981 300D (SOLD)
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#8
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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My Primary Driver - '85 300CD - 4-speed conversion, 2.47 rear, lowered, euro headlights, rebuilding (not restoring so much) Wife's - '08 Saab Sportcombi Aero Riding a '03 Yamaha Warrior
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#9
08-08-2009, 03:46 PM
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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.
__________________
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
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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14 E250 BlueTEC black. 45k miles 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
08-08-2009, 05:25 PM
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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.
__________________
$60 OM617 Blank Exhaust Flanges $110 OM606 Blank Exhaust Flanges No merc at the moment
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