C350 EXHAUST SOUND
04-16-2018, 12:55 PM
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2014 Mercedes C350 Coupe
C350 EXHAUST SOUND
Hey guys,
So I've recently got a Kleemann ecu tune, and they specifically programmed in the exhaust crackles and pops for me. When I rev the engine now, there are lots of pops, very similar to a C63. However, once the exhaust system (not engine, as its already warm) warms up, the crackles and pops become very muffled. Is this caused by the catalytic converter warming up and becoming more efficient at removing fuel in the exhaust? Would a secondary cat delete solve this problem? I would post a video but now the exhaust is warm, so I'll post one tonight.
edit: Does the C350 facelift have any oxygen sensors downstream of the secondary cats? Hopefully not so there won't be any adjustment of the tune necessary.
So I've recently got a Kleemann ecu tune, and they specifically programmed in the exhaust crackles and pops for me. When I rev the engine now, there are lots of pops, very similar to a C63. However, once the exhaust system (not engine, as its already warm) warms up, the crackles and pops become very muffled. Is this caused by the catalytic converter warming up and becoming more efficient at removing fuel in the exhaust? Would a secondary cat delete solve this problem? I would post a video but now the exhaust is warm, so I'll post one tonight.
edit: Does the C350 facelift have any oxygen sensors downstream of the secondary cats? Hopefully not so there won't be any adjustment of the tune necessary.
Last edited by bowenxue98; 04-16-2018 at 12:57 PM.
04-18-2018, 08:55 AM
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2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
There are no O2 sensors there. You can remove 2nd cats/anything past that.
Feel free to put a sound clip.
Feel free to put a sound clip.
04-18-2018, 09:01 AM
#4
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I did kleeman tune too. There is no sensors on secondary cats. I deleted those and resonator and put an x-pipe and magnaflow mufflers and love the sound. I have a 2014 c300
