I know some people on here have used the intake tubing off a 4.6 but for some reason I am having no luck. I just purchased the whole intake tube assembly (with mass air) for $.99 on ebay. I open the box and it has an oval throttle opening. Isnt this Cobra? I was under the assumption that 4.6 sohc was round. Maybe I got the wrong part. What have you guys done? I wouldnt mind getting a custom pipe bent at the exhaust shop but will need something to drive it there.