I started to work on with exhaust manifold...



At first (after couple of fittings) I did some welding, also made hole for lambda-sensor.



There´s a layout pic, before installation.



...and there it is! I do need to modify the rest of exhaust pipe too, later.

But there is some misfortune around my Sierra too, and it looks like that left side front wheel bearing is gone... I noticed that when shook the wheel. Well I did the same job on the right side few years ago, so not a big deal. Just gotta hope that there is SKF- bearing kits in local dealer, cause I don´t wanna use "neverheard"- stuff.