GM 25834229
Muffler W/Tpipe

You must begin by lifting the vehicle before putting on protective goggles and gloves to guarantee safety. Unscrew the nuts which secure the Exhaust Pipe flange to the catalytic converter pipe and the Exhaust Pipe flange to the Muffler. You should remove the Exhaust Pipe with its two flange gaskets. The installation process requires new gaskets on both the Muffler flange and catalytic converter pipe flange which precedes installing the Exhaust Pipe. Before installing, place new gaskets on both flanges and proceed with the installation of Muffler nuts to Exhaust Pipe then catalytic converter pipe nuts to Exhaust Pipe while tightening the nuts to 48 nm (35 ft. Lbs.). Exhaust system clearance verification together with component alignment checks must be performed prior to lowering the vehicle.

Position the muffler assembly from the front of the vehicle by lifting it over the rear axle, possibly requiring two people.

Place new gaskets on the muffler flange and the catalytic converter pipe flange before installing the exhaust pipe.

Install the nuts for the muffler to the exhaust pipe and the nuts for the catalytic converter pipe to the exhaust pipe, tightening the flange nuts to 48 Nm (35 ft. lbs.).