Posting pictures of an exhaust manifold will not bring you any closer to removing the defective part. Seems like you have no sense of direction, planning or motivation. Go to your local library and you can check out several repair manuals and educate yourself on how to properly repair vehicles. Most libraries have entire sections dedicated to this topic. Hell you can even access repair manuals online, subribe to Alldata or even purchase repair manuals online from the manufacturers.
Reading about it and actually doing it is a completely different thing. Nothing is more valuable than experience.
I started my tool collection at the age of 15 around the time I started working on cars and helping a friend's brother in law fix and sell cars on the side. Despite going to an accredited University and obtaining two degrees, I'm a business professional who still turns wrenches on the weekend for fun. However, fun gets old after a while, when your busy with a career, family and children. Few weeks ago I repaired a 2005 F-150 four wheel drive system for my brother's buddy who is on the same police force. It was misdiagnosed by a repair shop with a problem that is common knowledge with those systems. However, I had gratification of repairing it despite my garage being slightly colder than normal.
I have been driving for almost three decades and have never had a vehicle in a repair shop. I have always performed my own repairs and have even restored and built up a few muscle cars. I've pulled and installed several motors, transmissions, clutches, cams, heads, timing belts, timing chains, brakes, brake lines, fuel pumps, etc.
Word of mouth gets around if you are knowledgable and you eventually end up doing work on family and their friends vehicles. The money I have saved repairing my own vehicles and the money I have made repairing other's on the side, I have invested in specialty tools in order to save time for that trip to rent them.
Point is you gain knowledge and experience by actually doing the repairs.
Have you even removed the exhaust system or tried to see if you can gain access to the manifold bolts? Do you own a socket cap to try on it?