C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

aigooalex aka 'Gohm' M272 C230 Filter Mod

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Old Oct 23, 2024 | 12:13 PM
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Originally Posted by pcy
Factory air scoops 'ingest' fresh air from front of the car. As a result of your 'mod', car is ingesting the hot/warm' air from the engine bay. Which one is better (between warm air from engine bay vs. fresh air from outside of the car)? Your 'mod' will definitely make the car louder; however, I am not sure about being faster/more HP/more torque.

Unless the factory air filters are dirty/clogged, it should be allowing the max. air that 3.5" intake pipe (at MAF) can ingest. So, what is the advantage of doing this 'mod'? What are the disadvantages in the long-run?

I am not arguing. My philosophy is that you can do whatever you want with your car :-) You don't need to convince me or any one else about this 'mod' :-)

My opinion: Other than more 'noise', this mod does nothing else because the factory air filter housing is designed to 'muffle' the noise. Add to that, you are actually ingesting hot air from engine bay.
Right, I have kicking around all these ideas and I have reasoned that the final step is to cut a hole in the hood, route a 3” duct up from throttle body through the hood and mount an air filter. Then you get true cold air intake.
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