Does the spliiter replace the factory plastic undershield? and to hold the splitter, do i have to drill a hole on the bumper for the holder?

 

Yes it takes it out although does not replace it.

 

so the factory undertray will be removed and the APR splitter will be the new undertray right?

 

correct

 

do they fit perfectly with after market FMIC that requires cutting of the factory undertray? or do i have to cut some piece out of the splitter to fit the bigger FMIC? thanx in advance. =)

 

no need to cut anything, bolts right up, even with a larger FMIC!

 

this may answer some questions for you:

https://www.evolutionm.net/forums/sh...d.php?t=152357

 

I would also recommend when installing the splitter to make some sort of reinforced brackets to go behind the bumper where the rods will be attached. I just drilled holes in the bumper and put the screw through and after driving at high rates of speed, I noticed that the rods are pulling the original screw brackets out through the bumper. I hope that makes sense.

 

yeah, you can probably see in my pics I put extra washers all around. I actually mounted the rods to my mesh with washers.