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: 2 year/25,000 on internals, and 5 years/50,000 miles on exterior shell.
Available for the following BMWs: (click icon to change BMW)
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 - 2 years on the catalyst and 5 years on the external pipes. Legal in all states except California. We also offer a version that is legal all 50 states including California.
This item fits the following BMWs:
1989-1991 E34 BMW 535i
1988-1992 E32 BMW 735i 735il
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 - 2 years on the catalyst and 5 years on the external pipes. Legal in all 50 states including California.
This item fits the following BMWs:
1989-1991 E34 BMW 535i
1988-1992 E32 BMW 735i 735il
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 - 2 years on the catalyst and 5 years on the external pipes. Legal in all 50 states including California.
Left Side
- Cylinders 5-8, Bank 2
This item fits the following BMWs:
1993-3/1994 E34 BMW 540i
1992-1994 E32 BMW 740i - not for 740il
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 - 2 years on the catalyst and 5 years on the external pipes. Legal in all 50 states including California.
Right Side
- Cylinders 1-4, Bank 1
This item fits the following BMWs:
1993-3/1994 E34 BMW 540i
1992-1994 E32 BMW 740i - not for 740il
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 - 2 years on the catalyst and 5 years on the external pipes. Legal in all states except California. We also offer a version that is legal all 50 states including California.
Left Side
- Cylinders 5-8, Bank 2
This item fits the following BMWs:
1993-3/1994 E34 BMW 540i
1992-1994 E32 BMW 740i - not for 740il
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 - 2 years on the catalyst and 5 years on the external pipes. Legal in all states except California. We also offer a version that is legal all 50 states including California.
Right Side
- Cylinders 1-4, Bank 1
This item fits the following BMWs:
1993-3/1994 E34 BMW 540i
1992-1994 E32 BMW 740i - not for 740il
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 - 2 years on the catalyst and 5 years on the external pipes. Legal in all states except California. We also offer a version that is legal all 50 states including California.
Left Side - Cylinders 7-12, Bank 2
This item fits the following BMWs:
1988-1994 E32 BMW 750il
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 - 2 years on the catalyst and 5 years on the external pipes. Legal in all 50 states including California.
Left Side - Cylinders
7-12, Bank 2
This item fits the following BMWs:
1988-1994 E32 BMW 750il
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 - 2 years on the catalyst and 5 years on the external pipes. Legal in all states except California. We also offer a version that is legal all 50 states including California.
Right Side - Cylinders 1-6, Bank 1
This item fits the following BMWs:
1988-1994 E32 BMW 750il
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 - 2 years on the catalyst and 5 years on the external pipes. Legal in all 50 states including California.
Right Side - Cylinders
1-6, Bank 1
This item fits the following BMWs:
1988-1994 E32 BMW 750il
Catalytic Converters
