Chances are your exhaust manifold bolts are rusted on and hopefully not rounded off. Once you get your old one off be sure to replace with new.
Rein Industries is a supplier of quality replacement parts and fluids
Part #'s
11-72-1-437-202 / 11 72 1 437 202 / 11721437202
11-62-1-711-955 / 11 62 1 711 955 / 11621711955
⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov