GMC Sierra 2500 HD Performance Exhaust - Magnaflow - Direct-Fit Diesel Oxidation Catalyst - `01-`05

Product Information

$771.00

$925.20 Save: $154.20

Lowest Price Guaranteed

More info!

Average Rating

Brand:

Magnaflow

Available Options

Select quantity

Drive now, Pay later with Affirm

Learn More

or with PayPal

Both options will be available upon checkout.

Description Reviews You May Also Like About Manufacturer

GMC Sierra 2500 HD Performance Exhaust - Magnaflow - Direct-Fit Diesel Oxidation Catalyst - `01-`05 free shipping

GMC Sierra 2500 HD Performance Exhaust - Magnaflow - Direct-Fit Diesel Oxidation Catalyst - `01-`05. This OEM-grade MagnaFlow Diesel Oxidation Catalyst (DOC) is a direct-fit replacement for 2001–2005 GMC Sierra 2500 HD and compatible GM 2500HD models, designed to maintain Federal/EPA emissions compliance for OBDII federally registered vehicles and preserve proper exhaust monitoring functionality.

Engineered using MagnaFlow’s 3D scanning R&D and a replicated OE spun-body design, this DOC installs without cutting or welding and fits like the original equipment. The mandrel-bent tubing and compact, low-mass converter core are intended to support smooth exhaust flow and thermal efficiency, while a single laser fusion weld reduces potential leak points. Construction uses high-strength materials for long service life, and the kit includes essential gaskets and hardware to simplify installation with the proper tools.

Features

Federal/EPA compliant for OBDII federally registered vehicles
Direct-fit design — no cutting or welding required
Mandrel-bent tubing and replicated OE spun-body for OEM-like flow
16 gauge 409 stainless steel tubing with durable 308 stainless welds
OE-sized barbed exhaust hangers in corrosion-resistant 410 stainless
Includes necessary gaskets and mounting hardware

If you have questions or want help confirming fitment, call us — we’re happy to assist. We offer installation and customization services at both of our locations in Austin, Texas and the Los Angeles, California area: 512-982-9393 (TX) and 562-981-6800 (CA). If you’re considering purchasing multiple items, contact us for potential shipping discounts. We install on premises at both locations.

Disclaimer: Some images in our product listings that are provided by the manufacturer/ supplier are for illustration purposes only and may not be an exact representation of the item. The product listing details are accurate for the item offered. Please refer to the product description for precise specification and as always do not be hesitant to reach out to us with any questions.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Need Assistance?

We're here to help!

Call us at 512-982-9393 (Austin, TX) or
562-981-6800 (Signal Hill, CA)
and get assistance from one of our sales team members!

Product ID Number:

300403844

Lowest Price Guarantee

We price match and beat our competitors!

Shipping

We ship globally and offer multiple shipping item discounts.

GMC Sierra 2500 HD Performance Exhaust - Magnaflow - Direct-Fit Diesel Oxidation Catalyst - `01-`05