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Pontiac LeMans Catalytic Converters

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Fits: 1978 Oldsmobile Toronado, 1978 Pontiac LeMans, 1979 Oldsmobile Delta 88, 1980 Oldsmobile Cutlass, 1980 Pontiac LeMans, 1978 Pontiac Catalina, 1978 Old ...

PART# 36431

Ca Legality: 50-State Legal
Price: $267.59
Qty: Each

Free Shipping! *Continental U.S. only.

Fits: 1988 Pontiac Firebird, 1985 Pontiac Bonneville, 1982 Pontiac Phoenix, 1983 Oldsmobile Custom Cruiser, 1984 Oldsmobile Delta 88, 1986 Mercury Cougar, 1 ...

PART# 336016

Qty: Each

Fits: 1980 Oldsmobile Delta 88; 4.3, 8V, 1980 Pontiac Parisienne; 3.8, 6V, 1980 Oldsmobile 98;5, 8V, 1980 Oldsmobile Custom Cruiser; 5, 8V, 1980 Pontiac Bon ...

PART# 23419

Ca Legality: 49-State Legal (Ex. CA)
Inlet Size: 2.25"
Price: $116.47
Qty: Each

Free Shipping! *Continental U.S. only.

Fits: 1993 Pontiac LeMans, 1992 Pontiac LeMans, 1990 Pontiac LeMans, 1991 Pontiac LeMans

PART# 36446

Qty: Each

Fits: 1983 Pontiac Firebird; 5, 8V, 1981 Oldsmobile Delta 88; 4.3, 8V, 1990 Pontiac Firebird; 5.7, 8V, 1982 Oldsmobile 98;5, 8V, 1988 Nissan D21; 3, 6V, 198 ...

PART# 94015

Ca Legality: 49-State Legal (Ex. CA)
Inlet Size: 2.25"
Qty: Each

Fits: 1977 Oldsmobile Delta 88; 4.3, 8V, 1981 Oldsmobile Delta 88; 4.3, 8V, 1978 Pontiac Grand Prix; 5, 8V, 1982 Oldsmobile 98;5, 8V, 1979 Oldsmobile Delta ...

PART# 93418

Ca Legality: 49-State Legal (Ex. CA)
Inlet Size: 2.25"
Price: $122.87
Qty: Each

Free Shipping! *Continental U.S. only.

Fits: 1989 Pontiac LeMans; 1.6, 4L, 1988 Pontiac LeMans; 1.6, 4L

PART# 23428

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

Fits: 1976 Oldsmobile Toronado; 7.5, 8V, 1978 Plymouth Fury; 7.2, 8V, 1975 Oldsmobile Toronado; 7.5, 8V, 1980 Pontiac Firebird; 5, 8V, 1977 Pontiac Firebird ...

PART# 93506

Qty: Each

Fits: 1977 Pontiac Grand Prix; 5.7, 8V, 1975 Oldsmobile Delta 88; 5.7, 8V, 1976 Oldsmobile Delta 88; 5.7, 8V, 1976 Pontiac Catalina; 5.7, 8V, 1975 Oldsmobil ...

PART# 24099

Qty: Each

Fits: 1990 Pontiac LeMans; 2, 4L, 1989 Pontiac LeMans; 2, 4L

PART# 23492

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

Fits: 1978 Pontiac Grand Safari; 6.6, 8V, 1979 Pontiac Catalina; 5.7, 8V, 1978 Pontiac Catalina; 5.7, 8V, 1979 Pontiac Parisienne; 5, 8V, 1979 Pontiac Grand ...

PART# 93431

Ca Legality: 49-State Legal (Ex. CA)
Inlet Size: 2.5"
Qty: Each

Fits: 1993 Pontiac LeMans; 1.6, 4L, 1992 Pontiac LeMans; 1.6, 4L, 1990 Pontiac LeMans; 1.6, 4L, 1991 Pontiac LeMans; 1.6, 4L

PART# 23446

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


Not able to find what you are looking for?

MagnaFlow Catalytic Converter Pontiac LeMans 63.5" Length 2.0L 49-State

Magnaflow 23492 Direct Fit Catalytic Converter Pontiac LeMans

MagnaFlow Catalytic Converter Pontiac LeMans 14.25" Length 1.6L 49-State

Magnaflow 23446 Direct Fit Catalytic Converter Pontiac LeMans

Catalytic Converter Magnaflow 49 State 23428 fits 88-89 Pontiac LeMans 1.6L-L4

At Andy's Auto Sport, we have a huge variety of Pontiac LeMans 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 Pontiac LeMans catalytic converters, so that whether you are looking for replacement Pontiac LeMans 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 Pontiac LeMans 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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