Unless Perrin or eBayspec make 2 different lengths, then no..

The AVO is a longer pipe, includes the section normally known as the "short fat bit".. basically you just get yourself a 3" pod adaptor (with or without AFM provision, depending on what ECU you're running), slip it into the opening of the AVO intake pipe and clamp it down.. the pod goes on the other side.

Simple as that!