Does anyone know anything about k75 k100 air box removal to put conical filter

[Oliver]

Im just wondering if anyone has removed the stock airbox on one of these bad boys and added an elbow tub and an air filter. Is something like this sold anywhere? google BSK rs09 and an updated picture of this bike will show what Im talking about. Ill look into just fabricating one if I cant find it.

[wmax351]

Not readily doable. No reason either. The airflow meter is on the top part of the airbox. It flows far more air than could be ingested by the engine.

[Chaos]

I think it was Luftmeister that made this conversion, just a plate with the KN filter on the end of the air meter and a post to support it.  I've had it since the late 80's on my K75.  As wmax sez, no noticeable gains, but (a) it looks neat, and (b) it may run a little cooler with better airflow over the engine. 

[wmax351]

I think it was Luftmeister that made this conversion, just a plate with the KN filter on the end of the air meter and a post to support it.  I've had it since the late 80's on my K75.  As wmax sez, no noticeable gains, but (a) it looks neat, and (b) it may run a little cooler with better airflow over the engine.

Actually, it likely would cause a decrease in performance. The BMW system has an excellent cold air snorkel, and keeps the intake air temperature nice and low. This pulls hot air from behind the radiator, through a smaller K&N filter, which also lets more dirt into the engine.


On my bike, I don't have the AFM, as my megasquirt system uses a blended system of a manifold pressure sensor and a throttle position sensor for load determination. I kept the airbox, as it is extraordinarily well designed. Take a look inside the plenum (above the throttle bodies) for a view of pure art in engineering.

[johnny]

I need a megasquirt...

j o

[Oliver]

I would have an elbow coming out from the left or right side so that it all isnt sitting behind the radiator which will equal less dirt. Also I think it looks bomb as heck and opens up the top of the engine. Ill look into the luftmeister thing thanks for that