S3 8V Splitter DIY Fitting

[GTB]

I have a 2019 S3 8V and fancy the Triple R Composites splitter. It comes pre-drilled but speaking to them they advise also bonding it with Tiger Seal. I found a video on Youtibe of a guy in the USA fitting a splitter. It would appear that if you remove the plastic engine undertray you then have access to the inside of the bumper so no need to remove it.

I would therefore imagine fitment to be:
Jack car up
Remove undertray(s)
Offer splitter up and clamp
Drill holes
Clean and degrease fitment area(s)
Bond & bolt

Is it really that straight forward ?

I also fancy the sideskirts which appear to be held on with self tappers. Concerns over jacking after fitment are putting me off.

 

[NHN]

I wouldn't bond if you intend to remove on sale of the car, depends.on the size, weight etc I guess.

 

[Potterswheel]

I can confirm side skirts make jacking the car a p ---n in the a-----e wouldn't like to have to do it with a suit on.