Hello, this is my first post, so pardon me if I post this in a wrong place or something. I want to install a K&N air filter. I don't want to use my old air box and old restrictive intake pipe. I would like to get a new pipe and a 12 inch long K&N cone filter. I couldn't find any pipes online specifically for 1991 Lincoln Mark VII, so I'm just going to find something that fits. I am trying to figure out the angle of the pipe that's coming out from throttle body. It's definitely not 90 degrees and it doesn't look like 45. I'm thinking it's 60, but I would want to ask anyone who installed an intake, and what they used. Is there any specific pipe that I can buy, or should I just by a flexible one? I would really want to use one piece stainless steel pipe. Any suggestions?