New Exhaust manifold or OEM
 

okay i was changing out my o2 sensors in my 01 eclipse gt and the one on the rear manifold was extremely hard to come out so when i finally got it out the threads were stripped so i tried and re tapped it well it got worse so now all these muffler shops are telling me i need new a new header(rear manifold) okay does anyone know where to get an oem rear exhaust manifold thanks