spoiler
 

I'm about to install a 3 piece spoiler on my 87 supra, I'm just worried about where exactly do I drill the quarter panel for the side pieces. I could use some tips from anybody who has done this procedure before.

i havent done it but
this might help

put sum paint on the tip of the screws that comes from the spoiler
press it to the body of the car on the desired location
then you'll have markers where to drill holes

you gotta be precise tho, you have press it exactly where you want it
i guess do the middle piece first
cuz it goes from end to end
so that way you have a guide with the side pieces