I was under the impression that this "sound box" was an optional extra on the 156GT but standard on the 200GT. It is fitted behind the bulk head and gives a deeper throaty sound on acceleration.
I was definitely told at point of sale that this "sound box" is part of the optional 156 GT "sports pack" upgrade .
If I recall it included the sound box, shorter sports gear lever and smaller steering wheel with the RZC badge.
I think the cost was around £350 for the package, but they were included as standard on the 200GT, but dont hold me to that :eusa-think:
I did opt for the upgrade so it's definitely available, at least it was when I purchased my RCZ.
Maybe Peugeot have dropped this optional extra from the new model 156GT :eusa-think:
Did'nt know there was another gizmo on offer that could be added to alter the sound. :eusa-think:
It does give a nice throaty sound in the cabin, not sure though if this can be heard outside. :?: