Comes ready to clamp on with fitting instructions, although, we would advise you have this fitted at a local garage.
A cost effective way of improving the sound and look of your car
Please note, this will only fit the STANDARD system and the STANDARD diffuser or any aftermarket diffuser that is designed to fit the standard exhaust for PEUGEOT 208 GTI 1.6i 16v (200 Hp) 2013 -> 2015
Mandrel is the type of bend - non mandrel bends have a slight reduction in bore size at the bend, mandrel bends have the same size bore throughout.
Image shows mandrel bends.