Start by opening the negative cable from the battery and then raising the vehicle to support it for the exhaust manifold job. Take out the bolts and nuts attaching the exhaust pipe to the engine exhaust manifold, bring the vehicle down and remove both covers and heat shields. After that, take out the bolts, nuts and washers that hold the manifold to the cylinder head, then remove the manifold. Should any studs pull out when you remove the nuts, use sealer to coat the coarse thread side of new studs so water doesn't leak through. Fit the engine exhaust manifolds onto the two studs on the cylinder head and add some conical washers and nuts. Put two washers and bolts at each outboard arm end of the manifold, then two bolt ends on the center arm. Apply 34 Nm (25 ft. lbs.) torque to all bolts and nuts in the order of outer arm, middle arm and center arm, applying torque from the center inwards. Replace the heat shields over the exhaust mounts and tighten the screws to 6 Nm (55 inch lbs.), lastly attach the engine cover. Once more raise and support the vehicle, fasten the exhaust pipe to the manifold, secure it using bolts, nuts and retainers and tighten them to 26 Nm (19 ft. lbs.) torque. After that, park your car on the ground and reconnect the negative cable to the battery.