BMW Catalytic Converters for BMW Z3 (1996-2002)

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Our Catalytic Converters are the same quality construction as OEM but at a third of the cost! These are a direct replacement for the original BMW catalytic converter. These bolt on to your stock exhaust manifold and muffler, no welding required. We offer cats for both pre-OBDII BMW's (pre 1996) and BMW's with OBDII (1996+). We offer both 50 state legal converters and less expensive 49 state versions. Meets all EPA and CARB requirements. A factory warranty is included: 5 year/25,000 for 49 State versions, and 5 years/50,000 miles on 50 State legal versions.
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BMW Universal Catalytic Converter - 2.25"
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Emico - Corporate Logo
T#:23152011
Part#: 602205
In Stock
$ 97.99 USD
Free Shipping on orders $49 and up
Enhance your BMW's performance with this OBD II compliant universal fit catalytic converter. This converter, devoid of O2 sensor bungs, ensures compatibility with various vehicles. However, please note that it's not a 50-state legal catalytic converter. For California residents, it's recommended to verify local laws pertaining to aftermarket catalytic converters.
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Supersprint Section 1 Straight Pipe - E46 M3, Z3 M S54
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Supersprint - Corporate Logo
T#:4190
Part#: 787512
Ships in 3 Business Days
$ 996.00 USD
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$ 996.00 USD
Free Shipping
Free ground shipping! Fan of the rasp that comes from the S54 engine? This front exhaust section replaces the single resonator in the US exhaust (or the cats in Euro models) with a straight-through pipe. This can be a direct bolt-on to the stock or Euro headers and includes rear O2 sensor ports (for Euro models, must be plugged for US models). You can use this with the Supersprint resonator delete section 2 pipe for the max rasp effect. Or mount it with any other section 2 exhaust to fine-tune your sound. Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price, Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long-lasting construction, and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preference. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation! This part alters or deletes the emissions equipment on your car. Because of this, we require a waiver of emissions compliance to be signed and sent in to Turner Motorsport. You can download the waiver here.
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Supersprint Section 1 w/ Metallic Sport Cats - E46 M3, Z3 M S54 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supersprint - Corporate Logo
T#:213
Part#: 787502
Ships on Sep 23, 2026
$ 3,567.99 USD
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$ 3,567.99 USD
Free Shipping
Free ground shipping! Supersprint sport cats for the E46 M3 are designed to work with their cat-less headers or to replace factory Euro cats. The Supersprint sport cats are much freer-flowing than a traditional stock cat. With less restriction, less effort is required to move the exhaust gasses which will free up horsepower and torque. This cat section will mount to the Supersprint headers (p/n 044901) and then to a section 2. This section is built with O2 sensor bungs pre-installed after the cat if you wanted to extend your stock post-cat O2 sensors (however, special software may still be needed). Note the direction of the front flanges - they have to match the orientation of your existing header flanges. Supersprint exhaust is widely recognized as the leader in complete exhaust system upgrades - extremely high quality, well designed for optimal flow, and amazing sound. Even at a premium price, Supersprint is an unbeatable exhaust system because every aspect is done to such a high level. A Supersprint exhaust rewards you with a terrific sound, long-lasting construction, and excellent fitment. The Supersprint sound is very 'European' which fits the sporting sophistication of BMWs perfectly. Most systems are also modular - sections can be added or removed to custom tailor the exhaust sound to your preference. Aside from 'Race' systems, their mufflers meet European noise laws so you get a refined and tuned sound without being excessively loud. Supersprint exhausts generally run at a premium over other systems but no other system on the market can match their quality, performance, or reputation! Supersprint metallic sport catalytic converters are sourced from HJS of Germany. For 30 years HJS has been supplying motorsports teams with sport cats when rules required them. HJS is now a worldwide leader in sport cat technology and performance. Rally cars, German DTM, and Formula 3 all rely on HJS for clean, reliable horsepower. Supersprint works closely with HJS to spec a catalytic converter that is correct for the vehicle and engine package. This allows for a substantial increase in flow but which, at the same time, keeps the environmental specs within European limits. With any high-flow catalytic converter, special software or other work may be required to keep emissions fault codes and check engine lights from displaying. Supersprint catalytic converters are sold for track and other off-road uses only.
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Direct-Fit Catalytic Converter - Front (Rear Position)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Magnaflow - Corporate Logo
T#:373537
Part#: 49759
Back Ordered
$ 830.00 USD
Free Shipping
$ 830.00 USD
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The catalytic converter is an emissions device that converts the exhaust gasses exiting the engine into a less toxic substance. This is achieved through the internal honeycomb monolith, washcoat, and the catalyst itself that commonly consists of a mix of precious metals. Unfortunately the catalytic converters do not last forever, and can be damaged if the engine is running too rich on fuel. If you're getting an oxygen sensor fault, and the sensor is ok, the likely cause is a failed catalytic converter. Relieve worry about an upcoming emissions test and replace your faulty or damaged catalytic converter. Stainless steel construction Federal Emissions compliant design Formulated for Gas and Diesel Applications
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Direct-Fit Catalytic Converter - Front (Front Position)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Magnaflow - Corporate Logo
T#:373536
Part#: 49758
Back Ordered
$ 941.00 USD
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$ 941.00 USD
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If you are experiencing pulsating brakes, grinding, or have ridges on your rotors, it’s time to consider replacements. These rotors are slotted to ensure optimum stopping power by allowing for better evacuation of heat and gases. Black zinc plating also ensures quality and great looks for a long time to come. When doing a brake job, be sure to inspect the calipers, pads and brake lines for signs of wear. We carry a wide variety of brake pads for the daily driver or for the performance motorist.
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Genuine BMW Remanufactured Front Exhaust Manifold - W/ Catalytic Conv...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:373678
Part#: 18407514502KT
Ships in 6 Business Days
$ 6,245.07 USD
Free Shipping
$ 6,245.07 USD
Free Shipping
The catalytic converter on your vehicle is one of the most vital components of your emissions system. As part of your exhaust, the catalytic converter essentially filters the exhaust of your vehicle, making the air escaping your tail pipe less toxic. Price includes a $2527.20 core charge, to be refunded after we receive your refundable core. For cylinders 1-3.
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Direct-Fit Catalytic Converter - Rear
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Magnaflow - Corporate Logo
T#:384381
Part#: 50416
Back Ordered
$ 1,042.00 USD
Free Shipping
$ 1,042.00 USD
Free Shipping
The catalytic converter is an emissions device that converts the exhaust gasses exiting the engine into a less toxic substance. This is achieved through the internal honeycomb monolith, washcoat, and the catalyst itself that commonly consists of a mix of precious metals. Unfortunately the catalytic converters do not last forever, and can be damaged if the engine is running too rich on fuel. If you're getting an oxygen sensor fault, and the sensor is ok, the likely cause is a failed catalytic converter. Relieve worry about an upcoming emissions test and replace your faulty or damaged catalytic converter. Stainless steel construction Federal Emissions compliant design Formulated for Gas and Diesel Applications
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Direct-Fit Catalytic Converter - Front E46 Z3 S54 3.2L Engine ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Magnaflow - Corporate Logo
T#:375526
Part#: 50415
Back Ordered
$ 1,156.00 USD
Free Shipping
$ 1,156.00 USD
Free Shipping
The catalytic converter is an emissions device that converts the exhaust gasses exiting the engine into a less toxic substance. This is achieved through the internal honeycomb monolith, washcoat, and the catalyst itself that commonly consists of a mix of precious metals. Unfortunately the catalytic converters do not last forever, and can be damaged if the engine is running too rich on fuel. If you're getting an oxygen sensor fault, and the sensor is ok, the likely cause is a failed catalytic converter. Relieve worry about an upcoming emissions test and replace your faulty or damaged catalytic converter. Stainless steel construction Federal Emissions compliant design Formulated for Gas and Diesel Applications
Show More Show Less

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