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Magnaflow Universal Catalytic Converter; HM Grade; 3-Inch; Driver or Passenger Side (2006 6.0L, 8.1L Silverado 3500 HD)Find parts that fit my vehicle
Item SHS51978
Silverado 3500 Sales Tech
Verify parts fit & get product recommendations
M-F 8:30A-11P, Sat-Sun 8:30A-9P
$0.00
9 Reviews
Our Price
$220.00
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Product Information
Features, Description, Reviews, Q&A
Features
- Compact, lightweight construction enables installation in confined areas, welding is required
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Durable 308 stainless steel MIG welds
Description
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99659HM. The Universal design allows the part to fit a wide array of vehicles (cutting and welding required), and the stainless steel construction of this spun body catalytic converter is highly resistant to corrosion. The single laser fusion weld of the spun body greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
Fitment:
- 2006 Chevrolet Silverado 3500
Magnaflow 99659HM
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
5.0
Customer Reviews (9)
Mar 13, 2025
Review shared from Magnaflow Universal Catalytic Converter; OEM Grade; 2.50-Inch (01-10 F-150, Excluding 6.2L; 11-14 3.5L EcoBoost, 5.0L F-150)
2012 -
Installation Cost: 800
Installation Time: Shop Install
Cats
They are awesome ??made my light go out and made my truck exhaust a lil louder and sounds amazing...
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Feb 19, 2025
Review shared from Magnaflow Universal Catalytic Converter; OEM Grade; 2.50-Inch (07-14 Yukon)
2007 Denali - Tavaras
Magnaflow Catalytic Converter
Great price and appearance compared to OEM counterpart, big improvement right out the box sound and performance wise too. Very pleased.
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Feb 17, 2025
Review shared from Magnaflow Universal Catalytic Converter; HM Grade; 2.50-Inch (99-08 4.2L F-150; 97-03 4.6L F-150; 04-06 2WD 4.6L F-150; 04-06 4WD 5.4L F-150; 07-10 5.4L F-150; 11-14 5.0L F-150)
1999 XL - Amazing777
Installation Time: Afternoon
Amazing fit
Thank you for the part I was amazing to get it in time and great price
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Oct 7, 2024
Review shared from Magnaflow Universal Catalytic Converter; OEM Grade; 3-Inch (07-19 6.0L Sierra 2500 HD)
Marcus2022T
Installation Cost: 200
Installation Time: Shop Install
Perfect fit.
Great quality, great sound and factory replacement for 99SVT lightning
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Aug 3, 2024
Review shared from Magnaflow Universal Catalytic Converter; OEM Grade; 3-Inch (07-19 6.0L Sierra 2500 HD)
2011 SLE - Neas
Installation Time: Shop Install
Working well
So happy with it. Had it welded in place I'm going to do the other side next.
Fit 4/5
Quality 5/5
Bang For Your Buck 5/5
Feb 19, 2024
Review shared from Magnaflow Universal Catalytic Converter; OEM Grade; 2.50-Inch (01-10 F-150, Excluding 6.2L; 11-14 3.5L EcoBoost, 5.0L F-150)
Catalyticconver
Great product and very affordable
Converter for f150 works great and a great price this is my new go to place
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Dec 15, 2022
Review shared from Magnaflow Universal Catalytic Converter; HM Grade; 2.50-Inch (99-08 4.2L F-150; 97-03 4.6L F-150; 04-06 2WD 4.6L F-150; 04-06 4WD 5.4L F-150; 07-10 5.4L F-150; 11-14 5.0L F-150)
2005 FX4 - JBEH
Installation Cost: 575
Installation Time: Shop Install
Great cat
A lot cheaper than factory and a great product Installed with 3”mbrp exhaust
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Jun 18, 2022
Review shared from Magnaflow Universal Catalytic Converter; OEM Grade; 2.50-Inch (01-10 F-150, Excluding 6.2L; 11-14 3.5L EcoBoost, 5.0L F-150)
2004 FX4 - CaptainsReview
Installation Time: Shop Install
Can't beat the price!
I ordered two of these catalytic converters for my truck for less than the cost of one from the dealer! These Catalytic converters have better flow and work Awesome! I Love them!
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Apr 6, 2021
Review shared from Magnaflow Universal Catalytic Converter; OEM Grade; 2.50-Inch; Rear (01-03 5.4L F-150; 04-06 2WD 5.4L F-150)
2006 Lariat - BlackbeautyJane
Installation Time: Afternoon
Amazing place
I love this store can’t get better prices anywhere
Fit 5/5
Quality 5/5
Bang For Your Buck 5/5
Reviews of Magnaflow Exhaust products have an average rating of 4.7 out of 5
Questions & Answers
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Will It Fit My Silverado 3500
- 6.0L V8 - 06
- 8.1L V8 - 06
