since kooks headers are more or less a midlentgh header design how do they compare power wise to the so called under chassis design? how low under the car do the under chassis headers hang and would they be a problem with a car lowered 1 inch?

 

I got SLP headers and they hang below the frame about a inch. The car is lowered already by a inch to 1 1/2 inches. I have to be very careful when I go over bumps or come out of parking lots. I scraped it the other day. No damage though. I would not recommend it for a daily driver unless you are careful all the time.