Exhaust Catalytic Converters

Magnaflow

LACROSSE DIRECTFIT CATALYTIC CONVERTER

$991.00

SKU: M001 551903

In Stock
In Stock
Ships by Jun 8
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Magnaflow 551903 is a California-grade direct-fit catalytic converter designed to meet strict CARB (California Air Resources Board) emissions standards. This high-performance catalytic converter features MagnaFlow's premium construction with stainless steel bodies and high-temperature ceramic substrate cores for maximum durability and efficiency. It features free-flowing mandrel-bent tubing and highly corrosion-resistant stainless steel construction. It is designed for easy installation without cutting or welding, and includes necessary gaskets and hardware to avoid reusing corroded factory parts. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development to ensure the part fits and functions like original equipment. The OE spun body design with a single laser fusion weld greatly reduces the possibility of leaks, and its compact, low-mass design allows for greater thermal efficiency. This replacement part meets or exceeds California Air Resource Board requirements and has undergone additional testing to comply with CARB guidelines for legal use in California and CARB-restricted states.

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 551903

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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