







Walker Big Truck Muffler 21470
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$95.95
- Part Number: WLK21470
- Est. Ship Time: Usually Ships By Next Business Day

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Walker Big Truck Muffler, 21470
- Reduces Exhaust Gas Temperatures (EGT's).
- Improves Flow.
- Replaces your existing restrictive factory muffler.
- 3.5" Inlet x 3.5" Outlet.
- 7" Outside Diameter x 31" Case Length x 37" Overall Length.
- Can be welded on or clamped (Purchase the required 2x3.5" clamps in the options).
This muffler is used to replace the restrictive muffler on 7.3L Powerstrokes with minimal install effort.
Check out the Install Instructions
Extra pictures of the stock 7.3L muffler cutaway.

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