Why not just go with a high flow drop-in filter (un-oiled of course)? Much cheaper, used the stock setup, and I've read that you can still get some of that "woosh" noise everyone wants.
__________________
2015 M3 // Black Sapphire Metallic / Black Extended Merino Leather / Carbon Fiber Trim / Executive Package / M Double-Clutch Transmission w/ Drivelogic / 19" Black Light-Alloy Wheels / Adaptive M Suspension / Harman Kardon surround sound
Other // Shell Rotella T6 5w40
|