The vehicle's right wheels can drop off the edge of a road onto the shoulder while driving.
If the level of the shoulder is only slightly below the pavement, recovery should be fairly easy. Ease off the accelerator and then, if there is nothing in the way, steer so that the vehicle straddles the edge of the pavement.
Turn the steering wheel 8 to 13 cm (3 to 5 inches), about one-eighth turn, until the right front tire contacts the pavement edge. Then turn the steering wheel to go straight down the roadway.
Chevrolet Cobalt Service & Repair Manual. Exhaust Manifold, Replace
Removal
1.
Remove exhaust manifold heat shield.
2.
Remove oxygen sensor.
3.
Raise and support vehicle.
4.
Remove manifold to exhaust flex decoupler
mounting bolts.
...