My master plan was to install these headers and hook them up to the exhaust that was in the car. I am using the rusty headers on my junkyard Bonneville build. But the new headers have the ball flange and my existing exhaust has the flats. So it looks like the Malibu will get a new exhaust system and fittingly the Bonneville will inherit the old system. Not actually what I planned, but honestly this will work out better now that I think about it..Onward!
timo22