This filter is custom made by one of the industry leaders in air filters specifically for Buschur Racing. While designed to work specifically with our front facing turbo kit this filter can be used for any custom application. The filter features a 4" inlet, a custom 20 degree bend and is 5" long. It is only available in black. This would be great for those running speed density with a 4" intake and did not want a giant K&N filter in the engine bay like what is normally needed.