I in stalled a granelti lid on my car . Am i suppose to do the free ram air mod even tho it didnt say to in the directions because my friend says his slp directions said to.

thanx

 

not necessary. but doing it can give a little more hp.

 

I just bought an SLP lid, and my instructions said nothing of it. If he bought a flowpac or the SLP cold air kit, then the instructions would have mentioned it. You have to perform FRA to install one of the cold air scoops...