This is the first-ever modification I put on any car. I followed the instructions carefully, and was able to do it in a matter of a few hours. This air intake, along with some ECU adjustment will totally change the perception you have of your car. Turbo spool is now audible after installing this modification, and that just illustrates how much more air the engine is able to pull through the high-flow, high-surface area filter, and mandrel-bent intake pipe. After successfully doing this project, I now am so confident that I tackle projects I thought only mechanics were capable of doing.