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Gmc Sierra
Catalytic Converters

Gmc Sierra Catalytic Converters

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12 products

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Customer Reviews

Magnaflow Direct-Fit Catalytic Converters - Federal

Great

I bought the: Magnaflow Catalytic Converters - 49 State Legal Universal Fit Part #: 99209HM Had them installed for $150. They replaced the original ones on the truck with a stock exhaust (6.0 GMC). They seem to make the exhaust sound a little deeper in tone, which I like. View more reviews...
Posted By Paul V (Green Bay, WI) / June 4, 2015
2003 GMC Sierra
Yes
No
Magnaflow Direct-Fit Catalytic Converters - CARB

AutoAnything cam through again....

Not only did AutoAnything deliver in less than 24 hours, but the price with the Black Friday discount and free delivery blew everyone else out of the water... Had the cat installed on a Monday and my truck passed it's Smog test with flying colors.. Not bad for a 20 year old Yukon 2 door, 4x4... Thank you AutoAnything... View more reviews...
Posted By Robert O (Apple Valley, CA) / December 14, 2013
2014 GMC Sierra
Yes
No
Eastern Catalytic Direct-Fit Catalytic Converters (Federal EPA-Compliant)

Outstanding Value and Performance

This converter was a drop-in installation. Once I acquired a deep socket and a socket wrench entension, the installation was a breeze. Total installation time was less than 1 hour for this disabled shade tree mechanic. The hardest part was the removal of the O2 sensor. After driving for almost 2 weeks, I have seen a marked improvement in mileage. Granted I purchased this car used, the EPA highway estimate was 26 mpg, but on a recent trip, I ran over 32 mpg consistently! For a 10 year old car, I will NOT sneeze at this economy! View more reviews...
Posted By Edward Z (Mays Landing, NJ) / August 11, 2011
2004 GMC Sierra
Yes
No

From our experts

Saturday, February 20, 2021

Check Engine Light On! What Do Those Codes Mean?

It was a chilly night in Montana, but crystal clear. I was standing next to my Honda, taking in the majesty of the great arc of the Milky Way. Using a cool app on my phone, I tracked the International Space Station and saw it fly above my head at 17,000 miles per hour. It’s […] The post Check Engine Light On! What Do Those Codes Mean? appeared first on AutoAnything Resource Center.
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