After a long time I finally fitted a roof spoiler to my 5d Stilo.

I used a Stilo 3d roof spoiler after cutting it and make it fit to the 5d rear door.

any modifications need to be done?

Yes , I had to cut the 3d spoiler in two points as you can see in first image and use polyester to make them fit to the rear window arch.

Then primed the spoiler and painted it with car color code 408/B

Then fitted to the rear window with black windowglue

Looks great, as does the whole car! Does the spoiler keep the rear window clean in wet weather? The original arrangement makes the window very dirty as soon as the roads are wet.

jim cooper said:

Looks great, as does the whole car! Does the spoiler keep the rear window clean in wet weather? The original arrangement makes the window very dirty as soon as the roads are wet.

Click to expand...

It doesn't help one bit.

Mine is factory fitted unlike the OPs and I had a 1.2 active before without a spoiler... no difference, in my opinion its just looks... looks nicer with it.