K 1500 Yukon 4WD V8-5.3L VIN Z Flex Fuel (2003)
Exhaust Resonator: Description and Operation
Resonator
Some exhaust systems are equipped with a resonator.
The resonator, located either before or after the muffler, allows the use of mufflers with less back pressure.
Resonators are used when vehicle characteristics require specific exhaust tuning.
