Which one works better
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Senior Member
Joined: Nov 2013
Posts: 251
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c250 coupe .2012 e550 coupe
MBWorld Fanatic!
Joined: Dec 2007
Posts: 3,056
Likes: 47
From: Orlando, Florida
E350 Sport/ML350RWD
No. The OEM filter must be replaced.
The BMS Intake will increase HP/Torque and makes the car sound aggressive at the cost of lower Fuel Economy. I removed mine and re-installed the OE airbox/filter so I could take my car in for service. My MPG has increased by an average of 8 MPG.
The K&N drop-in has had mixed reviews. If there is any increase in airflow- it is usually the result of less filtration.
The BMS Intake will increase HP/Torque and makes the car sound aggressive at the cost of lower Fuel Economy. I removed mine and re-installed the OE airbox/filter so I could take my car in for service. My MPG has increased by an average of 8 MPG.
The K&N drop-in has had mixed reviews. If there is any increase in airflow- it is usually the result of less filtration.
Thread Starter
Senior Member
Joined: Nov 2013
Posts: 251
Likes: 2
c250 coupe .2012 e550 coupe
No. The OEM filter must be replaced. The BMS Intake will increase HP/Torque and makes the car sound aggressive at the cost of lower Fuel Economy. I removed mine and re-installed the OE airbox/filter so I could take my car in for service. My MPG has increased by an average of 8 MPG. The K&N drop-in has had mixed reviews. If there is any increase in airflow- it is usually the result of less filtration.
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MBWorld Fanatic!
Joined: Dec 2007
Posts: 3,056
Likes: 47
From: Orlando, Florida
E350 Sport/ML350RWD
The BMS Intake will give you an increase in Power/Torque and a more aggressive sound, but you will have a decrease in Fuel Economy.
You'll have to decide if it's worth it.
You'll have to decide if it's worth it.
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Thread Starter
Senior Member
Joined: Nov 2013
Posts: 251
Likes: 2
c250 coupe .2012 e550 coupe
The thing is my lease ended a week ago after 24 months so purchase the car cause I had invested a lot of money into it , custom exhaust
H&r spring , wheels , carbon fiber big fin diffuser An a primary cat deleted custom down pipe It's was too much to get the car bck to stock " Knowing how I drive the car I think I need an intake to make it complete
Am running a catles down pipe with a factory intake that dosnt sound right
Senior Member
Joined: Jan 2014
Posts: 479
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From: Raleigh, NC
2021 C63S Coupe
FYI I had the BMS intake and removed it. The BMS cone filter is ACTUALLY a K&N filter media (it's stamped right on the thing!).
I agree with the above statement - not impressed with the aftermarket air filter options, especially the BMS - I went back to stock and like it much better.
I do however enjoy the BMS tuner - that is pure gold right there!
I agree with the above statement - not impressed with the aftermarket air filter options, especially the BMS - I went back to stock and like it much better.
I do however enjoy the BMS tuner - that is pure gold right there!
