Has anybody ever thought about doing a custom exhaust job for a 126 diesel? Or maybe just a larger down pipe? Does anybody think there would be any performance/mpg benefit or am I just dreaming here.

I'd just like to hear everybody's thoughts.

Thanks!

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1963 Ford F100 - Cummins Swap?
1985 Mercedes 300SD - 210K
1992 Ford Festiva - 92K
2001 Ninja 250 - 8K

I think the biggest benefit would be the turbo would probably spool up sooner and quicker.

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1983 300SD
200000miles

That would be the only benefit. You won't gain any MPG or power, just noise.

Faster spool is more usable power.

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http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

It would get louder which since its a 120hp luxury car would be kind of pointless.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

If he just put an after market exhaust on it would probably just sound "nice". I know my muffler could use replacement.

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http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

I replaced the exhaust system on my SD, I did not replace the resonators, straight pipe, stock size, back to a stock muffler. When the turbo comes on, I can hear the exhaust as being more pronounced, I have noticed any performance difference.

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83 SD

84 CD

I guess to each their own, I have no desire to listen to the engine its not a sports car. I only want to hear it a bit when I get on it than nothing at normal RPM's, MB does this wonderfully with their stock system.

For replacement I recomend a stainless system from Timevalve or whatever they are called.

If it was an AMG than well thats different.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

I have a 91 350SD Turbo ......
Yes I custom bent a 3" pipe all the way back with a stainless flo-through muffler.
Its not loud at all …. However it does feel like it has more power... I'm at 32 -34 MPG on the highway
BTW I also ….
-calibrated the injectors so they all “pop” at the same pressure…
-removed the ADLA on top of the injector pump
-Adjusted the Waste gate for a little more boost
-Set the timing. 2-3 degrees advanced (replaced the timing chain as well)
-Installed 16 in custom rims ant tires…..
The 350SD….It’s a great car.....

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2003 SLK 230 (85000)
1999 E300 Turbo Diesel (388,000)
1991 350SD Turbo Diesel (185,000)

What did you do to adjust the wastegate?

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Gone to the dark side

- Jeff

cut the actuating rod in half ...threaded both sections an installed a turn buckle..
Can easily be lengthened or shortened...

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2003 SLK 230 (85000)
1999 E300 Turbo Diesel (388,000)
1991 350SD Turbo Diesel (185,000)

[QUOTE=Anthony Cerami;1874179]I have a 91 350SD Turbo ......
Yes I custom bent a 3" pipe all the way back with a stainless flo-through muffler and duel stainless tips.
Its not loud at all …. However it does feel like it has more power... I'm at 32 -34 MPG on the highway
BTW I also ….
-calibrated the injectors so they all “pop” at the same pressure…
-removed the ADLA on top of the injector pump
-Adjusted the Waste gate for a little more boost
-Set the timing. 2-3 degrees advanced (replaced the timing chain as well)
-Installed 16 in custom rims ant tires…..
The 350SD….It’s a great car.....

Anthony,

What muffler did you use? Does anyone have experience using Borla?

Greg

Oh thats smart. That 350, you get new rods in it?

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http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

I have had a straight pipe (2.5") for almost a year now.....and it doesn't bother me at all....you can tell its louder with the windows down, and can hear the deeper tones in the car a little more....but its insignificant, and I like it.

2.5" pipe from the turbo to the back of the car.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

If you cant say anything nice ....don't say it.....

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2003 SLK 230 (85000)
1999 E300 Turbo Diesel (388,000)
1991 350SD Turbo Diesel (185,000)