As a bespoke 3d printing car accessory manufacturer I wanted a solid filter option for my car, I reached out to multiple sources in the USA where we are located. Due to the flowrates and CFM's many other large manufacturers products did not fit our build in fitting the largest amount of flow and filter size into a small location. On doing my research I found a few manufacturers on your side of the pond. Comparably affordable to local options here and fitting my application almost perfectly I went with Pipercross. Order shipping was faster than I expected showing up in approximately 4 days. I have had packages take longer from other states. Extremely impressive! Very impressed with the outcome and the B9 F5 RS5 has a 1:1 in the world divorced turbo twin intake system now. Well done Pipercross crew!