Hello All.
I have just had fitted a carbon fibre NACA duct on the bonnet to help feed in cold air to the HKS Super Power Flow Air Filter.
I will be taking it out for a speed trial this weekend to see if it makes any difference.
Any other VR-4 owners out there who have tried this method to feed cold air to a HKS filter?
Regards, Humayun.
PS: I took a photograph of the NACA duct on the car but the image is too large to attach here. I can email what it looks like if anyone is interested.