I have a 2003 Grand Marquis with 100,000 miles. i have taken great care of this car. i just put dual exhaust, flowmaster 40 series, and in the process learned that i have a leak on my exhaust manifold. my father in law informed me tha instead of buying a new manifold i should try to put headers on. my problem is i cant find anyone anywhere that can tell me if they even make headers for my car and if so where to find them! HELP!!!!!!

 

Well i am sorry to say that i am new to these.I hardly have any knowledge about this thing.It better that you consult a good car person.