Manifold/header/muffler/tail Pipe problems of the 2002 Chevrolet Silverado 1500

I have an exhaust leak, due to a broken exhaust manifold bolt. Gm used the wrong bolts on my 5. 3liter engine. My chevy dealer says it's going to cost me $1200 to $1400 to repair my engine. My truck only has 87000 miles on it.

4 broken exhaust manifold bolts.

3 exhaust manifold bolts broke off manifold.

Started to hear engine exhaust getting loud, started to look for exhaust leak and found that # 8 and #7 piston leaking at exhaust manifold due to broken bolts and then engine error code O2 sensor bank 1 will not turn off, can not get truck to pass inspection have found out others truck owners have same problem.

I have a broken exhaust manifold bolt which is all too common on all v-8 gm engines on the silverado sierra series trucks. There are often multiple broken bolts most commonly the front or rear bolts. This should be under recall because it creates exhaust leaks and catalytic converter failure which adds a safety issue and financial burden because it is a very expensive and labor intensive repair. Complaints are all over the internet and youtube. As an ase master auto and truck tech I've repaired dozens and seen dozens more being in a government fleet operation. Gm should carry the financial burden to repair these vehicles not put the burden on the consumer. Please get the word out and lets get gm to pay up.