Exhaust Diagram?
08-20-2012, 06:34 PM
#1
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Exhaust Diagram?
Can anyone share a diagram of the exhaust system on the E550 coupe? I tried to have the resonators removed today but they didn't know what was what under the car and asked for a diagram.
Here is what I see:
Here is what I see:
Last edited by np888; 08-20-2012 at 08:09 PM.
08-21-2012, 04:52 AM
#3
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B8.5 Audi S5 3.0 TFSI Coupe
rear sections will be very similar - similar mount points, box sizes etc. Might be the same cat back (secondary) but that is about it, cat forward not sure that would fit.
08-21-2012, 09:39 AM
#6
Super Member
I believe the resonator to the exhaust tips might have the same hanging points, but pipe diameter on the C63 is larger. From the engine to the front of the resonator is different: for one thing the 2012+ E550C doesn't have the "secondary cats" as shown in the pic.
Last edited by Dueclaws; 08-21-2012 at 09:41 AM.
08-21-2012, 11:46 AM
#7
Super Member
are you sure that E550 does not have secondary cats ?
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08-21-2012, 02:26 PM
#8
Super Member
I believe the '12+ E550C might have secondary cats, but they are in the same housing as the primary cats: same as the M157 engines.
There is a "bubble" shape in the exhaust tube in front of the resonater, but I understand that it's a front muffler.
http://www.marcusfitzhugh.com/CLK/M278.html
Great information on this site.
Look under Advanced Materials and Design. You'll see the article states there is "a catalytic converter below each cylinder bank". Also see Catalytic Converters farther down the page.
Best,
D.C.
There is a "bubble" shape in the exhaust tube in front of the resonater, but I understand that it's a front muffler.
http://www.marcusfitzhugh.com/CLK/M278.html
Great information on this site.
Look under Advanced Materials and Design. You'll see the article states there is "a catalytic converter below each cylinder bank". Also see Catalytic Converters farther down the page.
Best,
D.C.
Last edited by Dueclaws; 08-21-2012 at 02:29 PM.
08-21-2012, 04:21 PM
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BMW F10 M5
I'd guess you're looking more for improved exhaust sound rather than performance?
08-21-2012, 05:23 PM
#10
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I've never had a car with a turbocharged motor, much less two turbochargers, but have to believe that the design of the exhaust is less critical for horsepower gains than with a normally aspirated motor? Are the catalytic converters, resonators, and mufflers quite restrictive to flow, and would freeing up flow help HP numbers even with the turbos?
I'd guess you're looking more for improved exhaust sound rather than performance?
I'd guess you're looking more for improved exhaust sound rather than performance?
Example:
One of my former performance boats had a twin turbo engine (non-ECU) with the exhaust routed through water injected pipes. I made no modifications other than changing the exhaust to dry pipes and the boost increased by 6#!
08-21-2012, 06:56 PM
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BMW F10 M5
Stealthy speed
Interesting, and when I get around to contacting RENNtech about their ECU upgrade for the 2013 E550 I'll ask them if they can suggest exhaust improvements to maximize what the upgrade gives to the motor. With the turbos in the exhaust stream, doesn't that keep the noise down even if the exhaust is opened up by removing the cat and the resonator? After my youth with fast, but loud cars, I now prefer my performance with less rumble if I can do that.
