BMW 745Li Catalytic Converters

Your One-Stop Shop For Trusted BMW 745Li Catalytic Converters

If you’re in search of BMW 745Li Catalytic Converters aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 4 Catalytic Converters from top brands with prices ranging from $26.77 to $1,346.99.

Beyond great prices, we stock trusted brands manufacturing all types of Catalytic Converters for your BMW 745Li. Of the 2 OEM and aftermarket parts brands we carry, some of the most popular are Rein and MagnaFlow.

And don’t forget to read customer reviews across all Catalytic Converters categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Catalytic Converters have to cost top dollar, and we prove it. Browse our top BMW 745Li Catalytic Converters below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential BMW 745Li Catalytic Converters

Rein – Exhaust Clamp (Part No.H8020331885RIN)

Exhaust Clamp

from

$26.77
Exhaust Clamp

MagnaFlow – California Grade CARB Compliant Manifold Catalytic Converter (Part No.452789)

California Grade CARB Compliant Manifold Catalytic Converter

from

$1346.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 452789. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 2004-2005 BMW 645Ci, 2004-2005 BMW 545i, and more, this direct-fit catalytic converter also interchanges with OE parts 18 40 7 522 555 and 18 40 7 522 571. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – HM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.50400)

HM Grade Federal / EPA Compliant Manifold Catalytic Converter

from

$1085.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 50400. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 2004-2005 BMW 645Ci, 2004-2005 BMW 545i, and more, this direct-fit catalytic converter also interchanges with OE parts 18 40 7 522 555 and 18 40 7 522 571. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.49790)

OEM Grade Federal / EPA Compliant Manifold Catalytic Converter

from

$1067.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49790. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 2004-2005 BMW 645Ci, 2004-2005 BMW 545i, and more, this direct-fit catalytic converter also interchanges with OE parts 18 40 7 522 554 and 18 40 7 522 570. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Catalytic Converters Brands You Can Trust For Your BMW 745Li

2 trusted brands of Catalytic Converters line our shelves, ready to help keep your BMW 745Li running smooth. Below are some of the most popular brands and their top Catalytic Converters offerings:

Most Purchased BMW 745Li Catalytic Converters from Rein

When you buy the most frequently purchased Rein brand Catalytic Converters, you can be confident it will be the right part for your BMW 745Li. Here are the Rein Catalytic Converters Advanced Auto customers buy the most:
Exhaust Clamp
from $26.77
This product is not rated
Exhaust Clamp
Catalytic Converter Clamps
California Grade CARB Compliant Manifold Catalytic Converter
from $1346.99
This product is not rated
California Grade CARB Compliant Manifold Catalytic Converter
Catalytic Converters
HM Grade Federal / EPA Compliant Manifold Catalytic Converter
from $1085.99
This product is not rated
HM Grade Federal / EPA Compliant Manifold Catalytic Converter
Catalytic Converters

FAQs for BMW 745Li Catalytic Converters

What are the most purchased Catalytic Converters for the BMW 745Li?

Out of 4 Catalytic Converters for the BMW 745Li, the most popular in our inventory are:
Exhaust Clamp
from $26.77
This product is not rated
Exhaust Clamp
Catalytic Converter Clamps
OEM Grade Federal / EPA Compliant Manifold Catalytic Converter
from $1067.99
This product is not rated
OEM Grade Federal / EPA Compliant Manifold Catalytic Converter
Catalytic Converters
HM Grade Federal / EPA Compliant Manifold Catalytic Converter
from $1085.99
This product is not rated
HM Grade Federal / EPA Compliant Manifold Catalytic Converter
Catalytic Converters