Catalytic Convertor / DPF
Thread Starter
Junior Member
Joined: May 2014
Posts: 23
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2011 C250 CDI Sport (UK)
Catalytic Convertor / DPF
I've been informed that DPF removal, and catalytic converter removal is a big no-no in the UK as it may fail an MOT, stopped by DVSA etc, but I can't seem to find any info / diagram of the C250 CDI exhaust system.
I've been informed by Acid and Imran at MSL (UK Mercedes Specialists) that the best option for my car is a Y pipe split to straight pipes with quad tips. I was thinking I might get more/ a nicer sound out of it by replacing the cat with a sports cat, or a bolt-in de-cat pipe, and/or a bolt-in de-dpf pipe. Would this be the case? I'm not concerned about performance gains, but would assume I could gain single figures of horsepower from such a modification.
In laymans terms, does it go: Engine -> Downpipe -> Catalytic Convertor -> DPF -> Silencer/Muffler -> Exhaust Tip
This is a stock diagram of a single exit exhaust system:
I've been informed by Acid and Imran at MSL (UK Mercedes Specialists) that the best option for my car is a Y pipe split to straight pipes with quad tips. I was thinking I might get more/ a nicer sound out of it by replacing the cat with a sports cat, or a bolt-in de-cat pipe, and/or a bolt-in de-dpf pipe. Would this be the case? I'm not concerned about performance gains, but would assume I could gain single figures of horsepower from such a modification.
In laymans terms, does it go: Engine -> Downpipe -> Catalytic Convertor -> DPF -> Silencer/Muffler -> Exhaust Tip
This is a stock diagram of a single exit exhaust system:
MBWorld Fanatic!
Joined: Aug 2009
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From: Charlotte, NC
2015 BMW M235i 6MT
If you're only looking for sound, why don't you just remove that little muffler? It looks pretty small, so I would guess it wouldn't become too loud, especially with the cat and DPF still in tact.
Member
Joined: Feb 2014
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From: Cyprus
W204 2012 C250 CDI
From the picture below you can see that you can't remove the muffler and keep the tip the same because is almost one with the muffler. You can remove the resonator. The pictures are from member who change their exhaust but i think its from CGI engines. I dont know if CDI engines have any differences.
Member
Joined: Feb 2014
Posts: 146
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From: Cyprus
W204 2012 C250 CDI
