RS3 Sportback Rear Diffuser On 8P2 A3 S-line Sportback

[8385HJ]

Basically my question is how much modifying needs to be done to make it fit? i know someone on this forum has made one fit but cant seem to find their thread if they would please be kind enough to point me in the right direction

Thanks

Hussayn

 

[J.R.]

This is the only guy who has done it:

http://www.audi-sport.net/vb/new-a3...4-who-said-you-cant-have-open-sky-roof-2.html