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GMC Sierra Catalytic Converters

At Andy's Auto Sport, we have a huge variety of GMC Sierra catalytic converters to ensure that you have every catalytic converter option available to you. We go out of our way to carry every major line of GMC Sierra catalytic converters, so that whether you are looking for replacement GMC Sierra catalytic converter or a performance high flow cat or anything in between, we've got it for you. Andy's Auto Sport is the ultimate shopping destination for your GMC Sierra catalytic converter needs!


 Select Your Vehicle

Shop GMC Sierra Catalytic Converters by Year

Shop GMC Sierra Catalytic Converters by Brand


1 - 12 of 129
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Fits: 98-00 Chevrolet Blazer V8, 98-00 Chevrolet S10 V8, 98-00 GMC Sonoma V8, 99-00 Chevrolet Silverado V8, 99-00 GMC Sierra V8

PART# 2010018

Ca Legality: 48-State Legal (Ex. CA/NY)
Inlet Size: 2.5"
Price: $420.74
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2005 GMC Yukon, 2003 GMC Yukon, 2005 GMC Sierra 1500, 2003 GMC Sierra 1500, 2003 Land Rover Discovery, 2004 GMC Yukon, 2005 GMC Savana 1500, 2004 GMC ...

PART# 455006

Price: $293.00
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2002 GMC Yukon, 2001 GMC YukonL 1500, 2002 GMC Sierra 1500

PART# 458062

Price: $945.50
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2003 GMC Yukon, 2003 GMC Sierra 1500, 2001 GMC Sierra 1500, 2000 GMC Sierra 1500, 1999 GMC Sierra 1500, 2000 GMC Yukon, 2001 GMC Yukon

PART# 445419

Ca Legality: 50-State Legal
Price: $831.16
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2002 GMC Sierra 2500 HD

PART# 447282

Price: $561.23
Qty: Each

Free Shipping!
*Continental U.S. only.



Fits: 2002 GMC Sierra 1500 HD; 6, 8V, 2003 GMC Sierra 1500 HD; 6, 8V, 2006 GMC YukonL 2500; 6, 8V, 2001 GMC YukonL 2500; 6, 8V, 2005 GMC YukonL 2500; 6, 8V, ...

PART# 49668

Ca Legality: 49-State Legal (Ex. CA)
Price: $519.23
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2002 GMC Sierra 1500 HD; 6, 8V, 2003 GMC Sierra 1500 HD; 6, 8V, 2006 GMC YukonL 2500; 6, 8V, 2001 GMC YukonL 2500; 6, 8V, 2005 GMC YukonL 2500; 6, 8V, ...

PART# 93623

Ca Legality: 49-State Legal (Ex. CA)
Price: $477.76
Qty: Each

Free Shipping!
*Continental U.S. only.


Ca Legality: 49-State Legal (Ex. CA)
Price: $328.82
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2005 GMC Yukon, 2003 GMC Yukon, 2005 GMC Sierra 1500, 2003 GMC Sierra 1500, 2003 Land Rover Discovery, 2004 GMC Yukon, 2005 GMC Savana 1500, 2004 GMC ...

PART# 455005

Price: $293.00
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2006 GMC YukonL 2500; 6, 8V, 2000 GMC YukonL 2500; 6, 8V, 2005 GMC YukonL 2500; 6, 8V, 2004 GMC Sierra 2500 HD; 6, 8V, 2001 GMC Sierra 2500 HD; 6, 8V, ...

PART# 49643

Ca Legality: 49-State Legal (Ex. CA)
Price: $477.15
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2001 GMC Sierra 1500 HD, 2003 GMC YukonL 2500, 2001 GMC Yukon

PART# 445647

Price: $494.64
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2007 GMC YukonL 2500; 6, 8V, 2008 Jeep Grand Cherokee; 6.1, 8V, 2009 Jeep Grand Cherokee; 6.1, 8V, 2012 GMC Sierra 1500; 6, 8V, 2004 GMC Sierra 2500 H ...

PART# 51209

Price: $144.39
Qty: Each

Free Shipping!
*Continental U.S. only.




Not able to find what you are looking for?

Right+Left Side New Catalytic Converter LH & RH GMC Sierra 1500 Truck 2500 Yukon

Magnaflow 53006 Universal High Flow Catalytic Converter Round 2.5" In/Out

Catalytic Converter fits 2007-2010 GMC Sierra 1500 Sierra 1500,Yukon XL 15

Catalytic Converter fits 1999-2003 GMC Sierra 1500 Yukon Sierra 2500 MAG

Flowmaster Direct Fit Catalytic Converter GMC Sierra 1500 Chevrolet Yukon XL ev

Pacesetter 2008 GMC Sierra WT 4.3L Direct Fit Cat. Converter 324196




WHY TO BUY?
The good news is that, although replacement GMC Sierra catalytic converters can be costly from your local dealership, aftermarket units (many times made by the same original equipment manufacturers) are substantially less expensive and can be purchased as direct-fit bolt-on units (assuming that the original converter was also bolted on) or weld-on units. Replacing your GMC Sierra catalytic converter can restore power that has been lost due to a faulty original converter and will make your vehicle run better overall. In addition, a bad GMC Sierra catalytic converter means that your exhaust is releasing harmful toxins into the atmosphere and environment, so getting a new one means you’re doing your part to keep the earth and its atmosphere clean.

DID YOU KNOW?
Modern catalytic converters are much less restrictive than in days past, so much so that the antiquated (and illegal) method of "gutting" the converters of their internal structures has been deemed almost pointless on newer cars, as the performance gains are minimal, if any. Aftermarket high-flow GMC Sierra catalytic converters are therefore a much better (and more responsible) choice for those seeking to upgrade their exhaust systems or replace a faulty converter.

So how do you know if your GMC Sierra catalytic converter is on its way out? If your GMC Sierra engine seems to be losing power or your temperature gauge reads a little high, one possible culprit could be that a rich condition is feeding excessive unburned fuel into the catalytic converter, which can overheat it as well as damage it. It is common to see your GMC Sierra catalytic converter glowing orange/red when this condition is present. Another common sign of catalytic converter failure is the infamous "rotten egg" smell. Other common symptoms include: a lack of power, rough engine idle, or stalling. If you are replacing your GMC Sierra catalytic converter due to any of the above circumstances, it is a good idea to also replace your oxygen sensor, since it plays a vital role in the air/fuel mixture ratio and may have also been damaged due to the same adverse conditions. Finally, physical damage can sometimes occur if a large rock or other object hits GMC Sierra catalytic converter, resulting in a damaged ceramic core. This can often be heard, as smaller ceramic pieces will bounce around inside the converter housing. As you can imagine, this is often accompanied by a loss of power due to exhaust blockage.
FAQs
Q: What is a hi-flow catalytic converter? Why buy one?
A: All stock catalytic converters are restrictive when it comes to exhaust flow, and they essentially place a choke hold on performance. The hi-flow catalytic converters on the market today have a higher flow capacity than factory units. Still able to pass emissions and gain horsepower, how can you go wrong with a hi-flow catalytic converter?

Q: How do you install a hi-flow catalytic converter?
A: There are two kinds of catalytic converters. The first are direct fit converters (no welding required) which have all necessary flanges and oxygen sensors just like the original equipment catalytic converters. There are also universal fit catalytic converters that are designed to be welded or clamped in place. Universal fit converters have the same flow characteristics as direct fit models with the same inlet and outlet diameter.



Andy's Auto Sport, Auto Parts & Supplies  New, Morgan Hill, CA

Popular Categories


GMC Sierra Catalytic Converters

At Andy's Auto Sport, we have a huge variety of GMC Sierra catalytic converters to ensure that you have every catalytic converter option available to you. We go out of our way to carry every major line of GMC Sierra catalytic converters, so that whether you are looking for replacement GMC Sierra catalytic converter or a performance high flow cat or anything in between, we've got it for you. Andy's Auto Sport is the ultimate shopping destination for your GMC Sierra catalytic converter needs!


Choose Your Vehicle:

Shop GMC Sierra Catalytic Converters by Year

Shop GMC Sierra Catalytic Converters by Brand

1 - 12 of 129
Sort by:




Fits: 98-00 Chevrolet Blazer V8, 98-00 Chevrolet S10 V8, 98-00 GMC Sonoma V8, 99-00 Chevrolet Silverado V8, 99-00 GMC Sierra V8

PART# 2010018

Ca Legality: 48-State Legal (Ex. CA/NY)
Inlet Size: 2.5"
Price: $420.74
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2005 GMC Yukon, 2003 GMC Yukon, 2005 GMC Sierra 1500, 2003 GMC Sierra 1500, 2003 Land Rover Discovery, 2004 GMC Yukon, 2005 GMC Savana 1500, 2004 GMC ...

PART# 455006

Price: $293.00
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2002 GMC Yukon, 2001 GMC YukonL 1500, 2002 GMC Sierra 1500

PART# 458062

Price: $945.50
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2003 GMC Yukon, 2003 GMC Sierra 1500, 2001 GMC Sierra 1500, 2000 GMC Sierra 1500, 1999 GMC Sierra 1500, 2000 GMC Yukon, 2001 GMC Yukon

PART# 445419

Ca Legality: 50-State Legal
Price: $831.16
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2002 GMC Sierra 2500 HD

PART# 447282

Price: $561.23
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2002 GMC Sierra 1500 HD; 6, 8V, 2003 GMC Sierra 1500 HD; 6, 8V, 2006 GMC YukonL 2500; 6, 8V, 2001 GMC YukonL 2500; 6, 8V, 2005 GMC YukonL 2500; 6, 8V, ...

PART# 49668

Ca Legality: 49-State Legal (Ex. CA)
Price: $519.23
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2002 GMC Sierra 1500 HD; 6, 8V, 2003 GMC Sierra 1500 HD; 6, 8V, 2006 GMC YukonL 2500; 6, 8V, 2001 GMC YukonL 2500; 6, 8V, 2005 GMC YukonL 2500; 6, 8V, ...

PART# 93623

Ca Legality: 49-State Legal (Ex. CA)
Price: $477.76
Qty: Each

Free Shipping!
*Continental U.S. only.


Ca Legality: 49-State Legal (Ex. CA)
Price: $328.82
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2005 GMC Yukon, 2003 GMC Yukon, 2005 GMC Sierra 1500, 2003 GMC Sierra 1500, 2003 Land Rover Discovery, 2004 GMC Yukon, 2005 GMC Savana 1500, 2004 GMC ...

PART# 455005

Price: $293.00
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2006 GMC YukonL 2500; 6, 8V, 2000 GMC YukonL 2500; 6, 8V, 2005 GMC YukonL 2500; 6, 8V, 2004 GMC Sierra 2500 HD; 6, 8V, 2001 GMC Sierra 2500 HD; 6, 8V, ...

PART# 49643

Ca Legality: 49-State Legal (Ex. CA)
Price: $477.15
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2001 GMC Sierra 1500 HD, 2003 GMC YukonL 2500, 2001 GMC Yukon

PART# 445647

Price: $494.64
Qty: Each

Free Shipping!
*Continental U.S. only.


Fits: 2007 GMC YukonL 2500; 6, 8V, 2008 Jeep Grand Cherokee; 6.1, 8V, 2009 Jeep Grand Cherokee; 6.1, 8V, 2012 GMC Sierra 1500; 6, 8V, 2004 GMC Sierra 2500 H ...

PART# 51209

Price: $144.39
Qty: Each

Free Shipping!
*Continental U.S. only.







Not able to find what you are looking for?

Right+Left Side New Catalytic Converter LH & RH GMC Sierra 1500 Truck 2500 Yukon

Magnaflow 53006 Universal High Flow Catalytic Converter Round 2.5" In/Out

Catalytic Converter fits 2007-2010 GMC Sierra 1500 Sierra 1500,Yukon XL 15

Catalytic Converter fits 1999-2003 GMC Sierra 1500 Yukon Sierra 2500 MAG

Flowmaster Direct Fit Catalytic Converter GMC Sierra 1500 Chevrolet Yukon XL ev

Pacesetter 2008 GMC Sierra WT 4.3L Direct Fit Cat. Converter 324196




WHY TO BUY?
The good news is that, although replacement GMC Sierra catalytic converters can be costly from your local dealership, aftermarket units (many times made by the same original equipment manufacturers) are substantially less expensive and can be purchased as direct-fit bolt-on units (assuming that the original converter was also bolted on) or weld-on units. Replacing your GMC Sierra catalytic converter can restore power that has been lost due to a faulty original converter and will make your vehicle run better overall. In addition, a bad GMC Sierra catalytic converter means that your exhaust is releasing harmful toxins into the atmosphere and environment, so getting a new one means you’re doing your part to keep the earth and its atmosphere clean.

DID YOU KNOW?
Modern catalytic converters are much less restrictive than in days past, so much so that the antiquated (and illegal) method of "gutting" the converters of their internal structures has been deemed almost pointless on newer cars, as the performance gains are minimal, if any. Aftermarket high-flow GMC Sierra catalytic converters are therefore a much better (and more responsible) choice for those seeking to upgrade their exhaust systems or replace a faulty converter.

So how do you know if your GMC Sierra catalytic converter is on its way out? If your GMC Sierra engine seems to be losing power or your temperature gauge reads a little high, one possible culprit could be that a rich condition is feeding excessive unburned fuel into the catalytic converter, which can overheat it as well as damage it. It is common to see your GMC Sierra catalytic converter glowing orange/red when this condition is present. Another common sign of catalytic converter failure is the infamous "rotten egg" smell. Other common symptoms include: a lack of power, rough engine idle, or stalling. If you are replacing your GMC Sierra catalytic converter due to any of the above circumstances, it is a good idea to also replace your oxygen sensor, since it plays a vital role in the air/fuel mixture ratio and may have also been damaged due to the same adverse conditions. Finally, physical damage can sometimes occur if a large rock or other object hits GMC Sierra catalytic converter, resulting in a damaged ceramic core. This can often be heard, as smaller ceramic pieces will bounce around inside the converter housing. As you can imagine, this is often accompanied by a loss of power due to exhaust blockage.
FAQs
Q: What is a hi-flow catalytic converter? Why buy one?
A: All stock catalytic converters are restrictive when it comes to exhaust flow, and they essentially place a choke hold on performance. The hi-flow catalytic converters on the market today have a higher flow capacity than factory units. Still able to pass emissions and gain horsepower, how can you go wrong with a hi-flow catalytic converter?

Q: How do you install a hi-flow catalytic converter?
A: There are two kinds of catalytic converters. The first are direct fit converters (no welding required) which have all necessary flanges and oxygen sensors just like the original equipment catalytic converters. There are also universal fit catalytic converters that are designed to be welded or clamped in place. Universal fit converters have the same flow characteristics as direct fit models with the same inlet and outlet diameter.







VIDEOS RELATED TO GMC SIERRA CATALYTIC CONVERTERS
VIDEOS RELATED TO GMC SIERRA CATALYTIC CONVERTERS


Andy's Auto Sport, Auto Parts & Supplies  New, Morgan Hill, CA

Popular Categories





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