I done the big part first then i did the intake vent. If i had to do it again, i would have just done the small vent although the vents were fully functional. I had a cold air duct run to the intake vent and the big vents allowed the air to flow through the grille and out the top. I will do it again on my next car which will be a Vauxhall. I will acquire a spare bonnet to do it on so i can put my car back to standard come time to sell.
