VXOC Astra-J/GTC

I'm considering, budget depending on fitting VXR bumpers to my 2.0 CDTI. I've got a couple of questions if someone wouldn't mind. I've tried searching but have found no conclusive answers.

Is the front bumper a straight swap? Also are there holes by the fog lights on the VXR bumper, seen some on ebay with holes and wondered if they were VXR bumpers or biturbo or something? 

Is it possible to swap the rear bumper? Would I need a new exhaust? Also any further comments or tips?

Any help would be greatly appreciated 

Thanks,
Morgan

do you have a gtc

Yeah, 2012 GTC, 2.0 cdti

Its been done so yes no problems you would have to sacrifice the front fogs as the vxr don't have them you may need to swap the left and right side mounting brackets but not 100% sure there any different cornishtaz may be able to help with some info

Sent him and pm and he kindly sent me a link to the part catalogue. They seem to be very similar. If anyone else would mind having a look that'd be great
http://www.partsbase.org/opel/astra-j-20...or-grille/