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  #16  
Old 02-20-2009, 11:29 AM
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Quote:
Originally Posted by Flounder View Post
I also have no center resonator on my '81 non-turbo coupe. (the price on it was something like $900!) I have a 2" straight pipe all the way back to the rear muffler. (with a little JC Whitney flex-pipe under the differential)

It does drone a bit in the midrange but overall I think it added a little HP to eliminate it. With only 83 HP to begin with I'm grateful for any increase I can get.
The issue with the 617 is the mount for the exhaust system when the resonator is eliminated. Any hard mount will cause the resonance. If the system is hung on rubber............there is no additional noise. The SD is identical before and after the resonator..........as well as I can determine. Right now, it has a single support at the rear muffler. I'm not happy about it, but it's very quiet.
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  #17  
Old 02-20-2009, 11:49 AM
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Location: Oklahoma
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Well we installed a new ANAS muffler behind is not straight pipe, It was quieter because we had a hole in the resinator, and its run good there is no dreded droning noise at any rpm... I had a shop did it for $45...

FOr the OM617 you can use a a rubber exhaust mount and get a long thin bar and put under the exhaust pipe so it hold's it, and add a Heat resistance Rubber under the metal bar so you wont have the annoying buzzing exhaust sound at idle... I ll see how this guy will do on my straight pipe on this weekend...
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Last edited by Actros617; 02-20-2009 at 12:48 PM.
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  #18  
Old 02-20-2009, 12:45 PM
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My Euro 5-speed 300TD has a nice growl while revving up through the gears - a sound I don't remember hearing in any of my friends automatic turbo-diesels. Hopefully, I won't need to 'straight-pipe' anything for awhile, as the PO had a complete OE exhaust system installed, but I do wonder if eliminnating my resonator would result in any performance improvement.

Happy Motoring, Mark
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  #19  
Old 02-20-2009, 01:36 PM
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Removing the resinator will give it a little more pep in acceleration....
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Benz's in our garage
2008 E320 Bluetec 127k mi

Sold
1987 300SDL 200K+
1994 S320 181K mi


RIP SECTION

1995 E320 Special Edition [Rear ended]
1984 300SD [Head on collision]
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  #20  
Old 02-20-2009, 01:45 PM
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Location: Grand Rapids, MI
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My straight pipe is supported by two hooks with rubber donuts at the back of the car, plenty good, since the tube is very rigid and sturdy, and doesn't weigh much.
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'01 E320 Wagon - 149k - mine (OC-154,000)
'05 C240 4matic Wagon - 153k - wifes (OC-154,500)
'01 E320 - 162k - Dad's (OC-163,500)
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  #21  
Old 02-20-2009, 02:31 PM
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Well i cant wait till this weekend to get me exhaust done he said he'll charge me $75-$100 but no more than $100 for a pipe that replaces the muffler and the resinator....
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Benz's in our garage
2008 E320 Bluetec 127k mi

Sold
1987 300SDL 200K+
1994 S320 181K mi


RIP SECTION

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  #22  
Old 02-21-2009, 03:31 AM
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Quote:
Originally Posted by Actros617 View Post
Well we installed a new ANAS muffler behind is not straight pipe, It was quieter because we had a hole in the resinator, and its run good there is no dreded droning noise at any rpm... I had a shop did it for $45...

FOr the OM617 you can use a a rubber exhaust mount and get a long thin bar and put under the exhaust pipe so it hold's it, and add a Heat resistance Rubber under the metal bar so you wont have the annoying buzzing exhaust sound at idle... I ll see how this guy will do on my straight pipe on this weekend...

Perhaps you meant ANSA....it was a good laugh though thank you!
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  #23  
Old 02-21-2009, 04:13 AM
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At least it wasn't an ANUS muffler, I hear those stink.


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