Be ready
you'll love the sound, one suggestion based on my experience with Milltek:
follow this easy tip and you will love the sound even more and you'll avoid headache
[ame="https://www.youtube.com/watch?v=MPJPfwFo-sM"]Sound Generator Noise Reduce - Subaru BRZ, Scion FR-S, Toyota GT86 - YouTube[/ame]