Exhaust› Mufflers and Resonators
AP Exhaust Products
9904 F250/F350 5.4L/6.8L EXHAUST PIPE
SKU: A01W 18174
Moderate — 2–4 hours
Description
MIA's Description
This muffler has a perforated internal tube design and an oval case shape. It is not reversible and comes with a natural finish. The case exterior measures 18 inches long, with an overall length of 22 inches.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | AP Exhaust Products |
| Part Number | A01W 18174 |
Videos
Walker Direct Fit Muffler Installation
Walker Emissions Control | What are Walker Mufflers Made Of?
Walker Muffler Quiet Flow Changed Everything
Inexpensive Walker SoundFX Universal Muffler on a V8 Engine
Walker Sound FX Muffler Install on a Mustang 5.0
78 Malibu 2.5" Walker Quiet Flow SS mufflers
Walker Quiet Flow Mufflers
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy