Retro fit upgrades for MK5

[FudgeMSR]

Had my MK5 just under 2 years now and love it but buying it used there are a few things I wish it had. Main thing is the rear bumper with exhaust cut outs and the rear spoiler. I have been searching for info on how to retro fit these and where to get the parts but can’t really find anything. Does anyone know where I could find this out or anyone that has fitted them already? Thanks in advance. 

[beethoven]

I have changed my rear bumper into one with the exhaust cut outs. Lower part of bumper, spoiler/diffuser, has to change, and also the black strip with reflectors needs to be changed.

I have bought the spare parts at the dealer. 

If you want to adjust the existing spoiler: it's a no go....tried it