If studs come out with the nuts when the exhaust manifold is removed, new studs along with a sealer on the thread should be inserted to stop water leaks. Load up the engine exhaust manifold and the gasket on the studs inside the cylinder head and attach conical washers and nuts to the studs as well. Secure the extra conical washers and tighten the bolts and nuts starting from the center arm making your way outward to a torque of 25 Nm (18 ft. lbs.). After that, add the exhaust heat shields and suspend the vehicle, ensuring that you don't overtighten the fixings which could lead to distortion or cracking. Lastly, join the
Exhaust Pipe to the manifold and connect them with bolts, nuts and retainers, ensuring the torque is 34Nm (25 ft.lbs.). For the left exhaust manifold, unscrew any studs that came out with their nuts and apply stud sealer to those studs. Next, position the manifold and gasket, add conical washers and nuts, torque them to 25 Nm (18 ft. lbs.), put on the heat shields, place the vehicle supported on ramps and assemble the exhaust pipe to the manifold.