i just bought a stock spoiler an was wonder how much would it cost if i took it to a dealer or anywhere else to do it. since im lazy but it it costs to much i can do it myself i just dont wanna hurt my baby.
it should have come with a template on where to drill the holes. i would estimate someone would want $50 to drill the 4 holes and bolt it on, lol. but if you don't have a template I would find one before I tried to do the work.
u could position it right where u want it, then give it a hard knock so it makes marks where u need to drive. thats kinda dangerous though, safer to just take a sheet of tagboard and put the spolier on it and mark where the holds will go, then postion it on your car and tape it down, then make with the drilling