It took about a week. The instructions are black and white photocopied and look like they've been photocopied off of another photo copy numerous times. Pictures are horrible and just extremely hard to make out details on a black air box lid. I'm sure I'll figure it out but was very disappointed with the unprofessional appearance of the instructions.Mines in the mail. I plan on doing a step by step on here whenever I install it. I do have a question for you though. How long from the time you ordered it till it got to your door?