KN Filter
06-05-2010, 11:28 AM
#5
3rd Gear Member
Join Date: May 2005
Location:
Posts: 632
I've used K&N filters in nearly every one of my cars for the past 10-11 years.
But one thing I have found, even in dyno testing, they don't give you much in the way of power.
In my 335i it gave me about 3 rwhp and 3 rwtq.
But the other thing I found was, if the car uses a MAS, the oil from the filter will usually f them up and require a trip to the dealer.
Not sure if the 2011 uses a Mass Airflow Sensor in the intake, but if it does, I'd recommend not putting an oiled filter in there.
But one thing I have found, even in dyno testing, they don't give you much in the way of power.
In my 335i it gave me about 3 rwhp and 3 rwtq.
But the other thing I found was, if the car uses a MAS, the oil from the filter will usually f them up and require a trip to the dealer.
Not sure if the 2011 uses a Mass Airflow Sensor in the intake, but if it does, I'd recommend not putting an oiled filter in there.
06-05-2010, 04:23 PM
#7
Cut & Paste Expert
Join Date: May 2007
Location: NW Arkansas
Posts: 13,322
06-05-2010, 09:41 PM
#9
5th Gear Member
Join Date: Jun 2007
Location: Decatur AL USA
Posts: 2,176
Its the same air box. I havnt compare the filter to check if the actual element they use is the same. After looking at the 5.0 filter it appears to have extremely deep pleats and an awful lot of surface area. I hope the K&N doesnt lose power like it did in VMP's GT500 Test.
