Jeep Cherokee XJ Factory Muffler Specs:
| Case Shape | Oval |
| Inlet Diameter (in) | 2.25 in. |
| Inlet Location | Center |
| Inlet Quantity | Single |
| Outlet Diameter (in) | 2.25 in. |
| Outlet Location | Offset |
| Outlet Quantity | Single |
Flowmaster Tips
- Flowmaster - the higher the number, the quieter it is.
- Since Flowmaster mufflers use sound energy cancellation technology, you don't have to worry about "packing material" deteriorating and getting louder after as little as a few months.
- The interior case volume of the inside of a Flowmaster muffler is far superior to that of a "straight-pipe" or "straight-through" muffler design. Imagine filling a "straight-pipe" or "straight-through" muffler with water vs. filling a Flowmaster muffler with water. Which one do think would hold substantially more volume?
- The deflector in a Flowmaster muffler acts as a one way check valve eliminating reversion back to the engine and creates a low pressure area to help scavenge the exhaust.
- Flowmasters unique style of H-Chamber designs help control interior resonance inside the cab area of your vehicles. "Straight-through" muffler designs cannot.
- Flowmasters use fully welded construction for added strength and durability to last even when installed on high horsepower engines.
- Made in the U.S.A.
Super 44 Extreme Off-road has diamond plate casing which is more ideal for crawlers to hold up to the abuse of rock-bashing.