My Volvo 63L's air cleaners are the diesel soaked foam rubber type. Man-O-Man, do I really hate them! They are messy, and the large O ring that secures the foam to the canister keeps popping off. I am thinking about converting the air cleaners to the paper pleated cone type. Does anybody see an issue with attaching them directly to the turbo? Should install a 45-90 degree elbow to angle the filter up? Would the engines run louder? I would really like to change them out for the above reasons along with the added bonus of making it easier to change out the oil cooler pencil zinc. With the old ones out of the way, the zincs are right in front of you! The crankcase vent is currently attached to the canister, with a couple of bolts, for bracing. My SNL is a machinist, and he says that he could make a couple of nice braces with his CNC milling machine. Thanks for your input and advice in advance!