Catalytic Converters

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Fits: 1999 Nissan Sentra, 1998 Nissan Sentra, 1998 Nissan 200SX, 1997 Nissan 200SX, 1997 Nissan Sentra

PART# 56023

Ca Legality: 50-State Legal
Price: $591.84
Qty: Each

Free Shipping! *Continental U.S. only.

Fits: 2001 Nissan Maxima; 3, 6V, 2000 Nissan Maxima; 3, 6V

PART# 49485

Qty: Each

Fits: 2005 Nissan Maxima; 3.5, 6V, 2009 Nissan Quest; 3.5, 6V, 2004 Nissan Maxima; 3.5, 6V, 2004 Nissan Quest; 3.5, 6V, 2006 Nissan Altima; 3.5, 6V, 2007 Ni ...

PART# 50833

Ca Legality: 49-State Legal (Ex. CA)
Price: $262.86
Qty: Each

Free Shipping! *Continental U.S. only.

Fits: 2005 Nissan Murano; 3.5, 6V, 2003 Nissan Murano; 3.5, 6V, 2004 Nissan Murano; 3.5, 6V, 2007 Nissan Murano; 3.5, 6V, 2006 Nissan Murano; 3.5, 6V

PART# 49276

Ca Legality: 49-State Legal (Ex. CA)
Price: $478.82
Qty: Each

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Fits: 2004 Mercedes-Benz CLK55 AMG, 2000 Mercedes-Benz E55 AMG, 2000 Nissan Altima, 2003 Mitsubishi Diamante, 2004 Mercedes-Benz CL55 AMG, 2001 Mercedes-Ben ...

PART# 441306

Qty: Each

Fits: 1985 Nissan 300ZX, 1984 Nissan 300ZX

PART# 36758

Ca Legality: 50-State Legal
Price: $263.49
Qty: Each

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Fits: 2005 Nissan 350Z; 3.5, 6V, 2006 Nissan 350Z; 3.5, 6V, 2003 Nissan 350Z; 3.5, 6V, 2004 Nissan 350Z; 3.5, 6V

PART# 51601

Ca Legality: 49-State Legal (Ex. CA)
Price: $699.11
Qty: Each

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Fits: 1985 Mercury Cougar, 1988 Mercury Cougar, 1987 Mercury Cougar, 1986 Mercury Cougar, 1990 Mercury Sable, 1984 Mercury Cougar, 1988 Mercury Sable, 1981 ...

PART# 37104

Qty: Each

Fits: 2003 Nissanterra; 3.3, 6V, 2002 Nissanterra; 3.3, 6V, 2001 Nissan Frontier; 3.3, 6V, 2001 Nissanterra; 3.3, 6V, 2002 Nissan Frontier; 3.3, 6V, 2004 Ni ...

PART# 49479

Qty: Each

Fits: 2008 Nissan 350Z; 3.5, 6V, 2007 Nissan 350Z; 3.5, 6V

PART# 49143

Qty: Each

Fits: 2004 Nissan Pathfinder, 2004 Nissan Titan

PART# 458381

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Not able to find what you are looking for?

2005 2006 2007 2008 2009 2010 Frontier FRONT LEFT catalytic converter

NEW OEM Factory FRONTIER XTERRA 2013 Exhaust Catalytic Converter LEFT

New Catalytic Converter Front for Nissan Maxima Infiniti I30 00-01 5YR WARRANTY

For 93-97 Nissan Altima Stainless Steel High Flow Catalytic Converter Exhaust

Manifold Catalytic Converter with full install kit for 02-06 Nissan Altima 2.5

At Andy's Auto Sport, we have a huge variety of Nissan 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 Nissan catalytic converters, so that whether you are looking for replacement Nissan 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 Nissan catalytic converter needs!


The good news is that, although replacement 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 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 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.
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 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 catalytic converter is on its way out? If your 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 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 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 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.
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.

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