Sale

Exhaust› Exhaust Pipes, Systems and Components

Magnaflow

Custom Builder Series 4-Inch Turbo-Back Exhaust

$1,273.14 $1,157.40 Save $115.74

SKU: MAG-17878

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Magnaflow Custom Builder Series is a turbo-back exhaust system designed for 1999-2003 Ford F-250 and F-350 models with the 7.3L engine, specifically for Extended and Crew Cabs. This system features a 4-inch diameter main piping and a single side rear exit configuration. Constructed from premium stainless steel, it offers durability and a superior sound and driving experience.

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

BrandMagnaflow
Part NumberMAG-17878
CategoryExhaust

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