GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19

GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19

GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19
Product Information
 price
$1,010.00
$1,212.00 Save: $202.00

Lowest Price Guaranteed
Average Rating
Brand:
Part number:
21-252

Available Options

Drive now, Pay later with Affirm
or with PayPal

Both options will be available upon checkout.

GMC Sierra 3500HD Catalytic Converter - Magnaflow - Direct-Fit - `11-`19 free shipping
GMC Sierra 3500HD Catalytic Converter

Upgrade your GMC Sierra 3500HD with the Magnaflow Direct-Fit Catalytic Converter designed for vehicles between 2011 and 2019. Engineered to ensure optimal performance, this high-grade catalytic converter meets Federal/EPA compliance requirements, ensuring your vehicle runs as it should.

Magnaflow’s catalytic converter is a top-tier solution for any exhaust maintenance needs. Constructed from highly corrosion-resistant stainless steel with mandrel-bent tubing, this component offers durability, efficient exhaust flow, and peak engine operation. Easy to install—with no need for cutting or welding—this direct-fit converter ensures the preservation of your truck’s original flow dynamics and performance. Magnaflow's advanced metrology department has utilized state-of-the-art 3D scanning systems to ensure a precise fit and function akin to your vehicle’s original equipment. Furthermore, the single laser fusion weld minimizes leak potential, while the compact, low-mass design optimizes thermal efficiency.

Features

  • Stainless steel construction for exemplary corrosion resistance
  • Mandrel-bent tubing for smooth exhaust flow
  • Direct-fit design for easy DIY installation
  • Precision stamped collector for optimal engine efficiency
  • OE-sized barbed exhaust hangers for noise and vibration reduction

For those seeking reliable and compliant catalytic converters, the Magnaflow Direct-Fit is a trusted choice. If you have any questions, feel free to reach out to us directly at 512-982-9393 for our Austin, TX location or 562-981-6800 for our Los Angeles, CA area location. Both locations offer installation and customization services on-premises. Considering purchasing multiple items? Contact us for potential shipping discounts.

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

About Manufacturer

QUALITY. POWER. SOUND.

These words are not just the MagnaFlow slogan, its the philosophy that drives the company to superior quality products with the power and sound you’re looking for.


MagnaFlow got its start as a natural extension of Car Sound Exhaust, the parent company to MagnaFlow. Car Sound Exhaust specializes in superior catalytic converter and performance exhaust technology, and has been doing so for the past 35+ years, earning their reputation as an international market leader. In addition to the MagnaFlow brand, Car Sound Exhaust also represents Rumble and BRExhaust, further cementing the company as an industry leader in all areas of replacement and performance exhaust.


BRExhaust - a MAGNAFLOW Group Company.

BRExhaust (a MagnaFlow Group company) manufactures an extensive line of direct-fit replacement exhaust systems and kits that meet or exceed all OEM fitment requirements and performance standards.


A true single box solution, each kit is expertly and efficiently packaged containing all the components, clamps gaskets, and hardware needed to get the job done – without cutting, bending, welding, or fabrication.


BRExhaust offers a wide lineup of products including Direct-Fit Replacement Exhaust System Kits, Pipe Kits, Muffler Kits, and Hardware.

Product Reviews

Average user rating

0 / 5

0 reviews

5
4
3
2
1

Two locations to serve you

AUSTIN, TX

22108 SH 71 W.
Spicewood, TX 78669
512-982-9393
Mon-Fri: 9 AM - 6PM CST
Sat-Sun: Closed

LOS ANGELES, CA

2716 Dawson Ave.
Signal Hill, CA 90755
562-981-6800
Mon-Fri: 9 AM - 6PM PST
Sat-Sun: Closed