Making Nismo ducts

Originally Posted by djtodd

Yeah, what I was thinking was to go from the 4" opening to 2x3" outlets. 3" duct is rather easily acquired, and you could close one off if you didnt care to route 2 ducts to the rotor. Personally, I would rather have more airflow than less.

I made a rough mockup earlier today, but I'm just going to have to break down and cut the holes to get the angle just right.

Also, how to the oem ducts mount? I was thinking of a plate on the inside of the bumper. That way, I could make some studs into the duct that would go through the bumper and plate, secured by lock-nut or similar.