# Banks Power 99-03 Ford 7.3L Muffler Kit - 4in X 4in S/S

Straight-through flow path. Exclusive expansion chamber dissipates annoying mid-range drone. Flows up to 201% better than stock. Authoritative, but never overpowering, exhaust sound. Polished-stainless steel. 4 inch diameter in/out. Monster Exhaust Benefits. Replacing the restrictive stock muffler with Banks free-flowing Monster muffler makes a huge difference in airflow, sound, and performance. The Banks muffler has a large inlet and outlet where the exhaust flows straight through, compared to the torturous stock design with hairpin chambers that build up back-pressure. Only Banks Monster Muffler has an expansion chamber to alleviate the nasty drone that other straight-through mufflers are known for. Banks utilizes durable ceramic packing with a high temp rating so it won't degrade like fiberglass. Add it all together and you get a muffler that flows over three times better than stock and delivers a pleasing, throaty rumble!Key Features: Superior Flow and Rich, Throaty Sound. Straight-through flow path. Exclusive expansion chamber dissipates annoying mid-range drone. Flows up to 201% better than stock. Authoritative, but never overpowering, exhaust sound. Polished-stainless steel. 4 inch diameter in/out

-   Superior Flow and Rich, Throaty Sound
-   5 inch diameter in/out

This Part Fits:

Year

Make

Model

Submodel

1999-2003

Ford

F-250 Super Duty

Lariat

1999-2003

Ford

F-250 Super Duty

XL

1999-2003

Ford

F-250 Super Duty

XLT

2003

Ford

F-350 Super Duty

King Ranch

1999-2003

Ford

F-350 Super Duty

Lariat

1999-2003

Ford

F-350 Super Duty

XL

1999-2003

Ford

F-350 Super Duty

XLT

## Details

- **Price:** 471.18 CAD
- **Vendor:** Banks Power
- **Type:** Muffler
- **Tags:** ClearanceItem:N, Core:N, CorePrice:0, EPA:N/A, Exhaust- Mufflers & Tips>Muffler, fits_1999-2003`Ford`F-250 Super Duty`Lariat~1999-2003`Ford`F-250 Super Duty`XL~1999-2003`Ford`F-250 Super Duty`XLT~2003`Ford`F-350 Super Duty`King Ranch~1999-2003`Ford`F-350 Super Duty`Lariat~1999-2003`Ford`F-350 Super Duty`XL, fits_1999-2003`Ford`F-350 Super Duty`XLT, LTL:N, MPN:53509, Non-CARB:N, Prop65:Y, SpecialOrder:Y, TURN14_ID:4381125

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 471.18 CAD | In stock |

## Images

- Photo - Primary
- User 4

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/banks-power-99-03-ford-7-3l-muffler-kit-4in-x-4in-s-s)
> Updated: 2026-07-18