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Magnaflow

MagnaFlow 4 X 9in. Oval Straight-Through Performance Exhaust Muffler 11378

$259.05 $194.77 Save $64.28

SKU: M001 11378

In Stock
In Stock
Ships by Jun 12
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The MagnaFlow 11378 is a universal performance exhaust muffler engineered to enhance your vehicle's sound and performance. It features a free-flowing, straight-through perforated stainless steel core with a stainless steel mesh and acoustic fiber fill. The reversible, universal design with dual 2.25-inch inlet/outlet allows for flexible installation. This muffler has a weight-optimized, oval-shaped body measuring 4x9x11 inches with a satin finish. It is constructed from durable, corrosion-resistant stainless steel using precision CNC manufacturing.

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 NumberM001 11378

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.

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