B9 maxton rear difusor

Hello

Does anyone have a B9 sedan or avant with this diffusor?
https://maxtondesign.com/products/rear-valance-v-1-audi-a4-s-line-b9-version-with-single-exhaust-tips-on-both-sides

I want to buy one, but my avant has a retractable tow bar, and according to maxton, it is not compatible.
My question is, will the diffusor block the tow bar from deploying (because I'll never use the tow bar, and if blocks, it's ok) or the mounting clips are on different positions?

Thanks in advance