Two problems related to manifold/header/muffler/tail pipe have been reported for the 1996 Chevrolet Blazer. The most recently reported issues are listed below.
Intake manifold gasket leak. . . Paid over $700 for replacement. Three days later, the water pump broke. The dealership said it was a common occurence when the intake manifold gasket is replaced, and now wants to charge me over $350 to fix the water pump.
Coolent leak at intake manifold .