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    BMW E30 Catalytic Converters

    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.
    You're currently viewing parts for your (E30) 3-series 1984-1991. Reset your chassis
    For accurate results, specify your year and model below.
    50 State Legal

    Direct fit and replacement to OEM but at a third of the cost. No welding required because these bolt on to your stock exhaust manifold and muffler. Backed by a manufacturers warranty - 5 years/50,000 miles. Legal in all all 50 states including California. Manufactured by Magnaflow. This is a 400 cell catalyitc converter which is hiigher flowing & better performing than the 600-900 cell OEM catalytic.

    This item fits the following BMWs:
    1984-1985 E30 BMW 318i
    Part #: 332551-M
    Price: $418.95 (USD) 
    Quantity:   
    50 State Legal

    Direct fit and replacement to OEM but at a third of the cost. No welding required because these bolt on to your stock exhaust manifold and muffler. Backed by a manufacturers warranty - 5 years/50,000 miles. Legal in all all 50 states including California. Manufactured by Magnaflow. This is a 400 cell catalyitc converter which is hiigher flowing & better performing than the 600-900 cell OEM catalytic. Br>
    This item fits the following BMWs:
    1984-1987 E30 BMW 325e 325es
    Part #: 332553-M
    Price: $521.40 (USD) 
    Quantity:   
    50 State Legal

    Direct fit and replacement to OEM but at a third of the cost. No welding required because these bolt on to your stock exhaust manifold and muffler. Backed by a manufacturers warranty - 5 years/50,000 miles. Legal in all all 50 states including California. Manufactured by Magnaflow. This is a 400 cell catalyitc converter which is hiigher flowing & better performing than the 600-900 cell OEM catalytic.

    This item fits the following BMWs:
    1987-1991 E30 BMW 325i 325ic 325is
    1988 E30 BMW 325e 325es
    Part #: 332554-M
    Price: $533.95 (USD) 
    Quantity:   
    50 State Legal

    Replace your defective catalytic converter with this is the Genuine BMW catalytic converter for the E30 M3 with S14 engine. Genuine BMW parts are the highest quality parts available.  

    We strongly recommend thoroughly checking engine fault codes and fixing any relate issues before replacing the catalytic converter.  We also strongly replacing oxygen sensors when replacing a catalytic converter.  

    This item fits the following BMWs:
    1988-1991 E30 BMW M3
    Part #: 18301312263
    Price: $2,041.95 (USD) 
    49 State Legal

    This catalytic converter is a direct fit replacement to OEM, but at a third of the cost. No welding required because these bolt on to your stock exhaust manifold and muffler. Backed by a manufacturers warranty - 5 years/25,000 miles . Legal in all states EXCEPT California. We also offer a version that is legal all 50 states including California. Manufactured by Magnaflow. This is a 400 cell catalyitc converter which is hiigher flowing & better performing than the 600-900 cell OEM catalytic. Replaces BMW part number 11769059152.

    For vehicles conforming to FEDERAL (EPA) Tier 0 & Tier 1 emissions.
    Please check your emissions label to ensure you select the correct catalytic converter.

    This item fits the following BMWs:
    1984-12/1984 E30 BMW 318i
    Part #: 23551-M
    Price: $234.23 (USD) 
    Quantity:   
    49 State Legal

    This catalytic converter is a direct fit replacement to OEM, but at a third of the cost. No welding required because these bolt on to your stock exhaust manifold and muffler. Backed by a manufacturers warranty - 5 years/25,000 miles . Legal in all states EXCEPT California. We also offer a version that is legal all 50 states including California. Manufactured by Magnaflow. This is a 400 cell catalyitc converter which is hiigher flowing & better performing than the 600-900 cell OEM catalytic. Replaces BMW part number 18301723758.

    For vehicles conforming to FEDERAL (EPA) Tier 0 & Tier 1 emissions.
    Please check your emissions label to ensure you select the correct catalytic converter.

    This item fits the following BMWs:
    1990-1992 E30 BMW 318i 318is 318ic
    Part #: 23799-M
    Price: $387.71 (USD) 
    Quantity:   
    49 State Legal

    Direct fit and replacement to OEM but at a third of the cost. No welding required because these bolt on to your stock exhaust manifold and muffler.Backed by a manufacturers warranty - 5 years/25,000 miles. Legal in all states EXCEPT California. We also offer a version that is legal all 50 states including California.

    For vehicles conforming to FEDERAL (EPA) Tier 0 & Tier 1 emissions.
    Please check your emissions label to ensure you select the correct catalytic converter.

    This item fits the following BMWs:
    1987-1991 E30 BMW 325i 325ic 325is
    1988 E30 BMW 325e 325es
    Part #: 23554-M
    Price: $376.55 (USD) 
    Quantity:   
    49 State Legal

    This catalytic converter is a direct fit replacement to OEM, but at a third of the cost. No welding required because these bolt on to your stock exhaust manifold and muffler. Backed by a manufacturers warranty - 5 years/25,000 miles . Legal in all states EXCEPT California. We also offer a version that is legal all 50 states including California. Manufactured by Magnaflow. This is a 400 cell catalyitc converter which is hiigher flowing & better performing than the 600-900 cell OEM catalytic. Replaces BMW part number 11761711822 and 11761711823.

    For vehicles conforming to FEDERAL (EPA) Tier 0 & Tier 1 emissions.
    Please check your emissions label to ensure you select the correct catalytic converter.

    This item fits the following BMWs:
    1984-1987 E30 BMW325e 325es
    Part #: 23553-M
    Price: $375.32 (USD) 
    Quantity: