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MagnaFlow CARB Manifold Converter 452790 for the 2004-2005 BMW 545i / 645Ci

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MagnaFlow 452790 carb manifold converter, rear three-quarter view of the turntable spin

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MagnaFlow 452790 carb manifold converter, opposite rear three-quarter view of the turntable spin

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MagnaFlow 452790 carb manifold converter, opposite front three-quarter view of the turntable spin

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MagnaFlow 452790 carb manifold converter, side view of the turntable spin

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MagnaFlow 452790 carb manifold converter, opposite side view of the turntable spin

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MagnaFlow 452790 carb manifold converter, front three-quarter view of the turntable spin

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MagnaFlow 452790 carb manifold converter, rear view of the turntable spin

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MagnaFlow CARB Manifold Cat 2004-2005 BMW 545i / 645Ci 4.4L 452790

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Brand: MagnaflowSKU / Part #: MAG452790

Regular price: $1,331.00
Regular price: ~~$1,331.00~~
Sale price: $1,331.00
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Subtotal: $1,331.00

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MagnaFlow CARB Manifold Cat 2004-2005 BMW 545i / 645Ci 4.4L 452790

Subtotal: $1,331.00

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Overview

Replacing a failed converter on a 2004-2005 BMW 545i / 645Ci 4.4L in California or another CARB state means the part has to carry an Executive Order. MagnaFlow 452790 is covered by EO D-193-180 and installs at the factory mounting points. Coverage spans 2 model years: 2004-2005 BMW 545i (Base), 2004-2005 BMW 645Ci (Base), 2004-2005 BMW 745i (Base) and 2004-2005 BMW 745Li (Base). It replaces the passenger-side catalyst only; confirm the position on your vehicle before ordering. Shipping weight is about 9 lb.

Features

CARB EO D-193-180 for 4.4L engine families listed on the order
Manifold and catalyst arrive as one assembly
Passenger-side position
Fits 2004-2005 BMW 545i: Base
Fits 2004-2005 BMW 645Ci: Base
Fits 2004-2005 BMW 745i: Base
1 further model listed in the fitment table

What is in the box

Gaskets and mounting hardware for installation

Specs

Part number	452790
Type	CARB Manifold Converter
Emissions	California Grade, CARB EO D-193-180
Material	16-gauge 409 stainless steel
Shipping weight	9 lb

Construction

California Grade converter covered by CARB Executive Order D-193-180
Manifold and catalyst in one bolt-on assembly
Installs at the factory mounting points without cutting or welding
16-gauge 409 stainless tubing for a long service life
Spun body closed with a single laser-fusion weld to resist leaks
Mandrel-bent inlet and outlet pipes keep factory flow
308 stainless MIG welds
Shape developed from 3D scans of the original part

Installation

Direct-fit and bolt-on; a capable DIYer can install it with the right tools, though professional installation is recommended.

Fitment notes

Legal in all 50 states when the vehicle's engine family appears on this converter's Executive Order. Confirm your engine family before ordering. Check the fitment table below against your vehicle, including trim and engine.

Fitment

Make	Model	Chassis	Year	Engine
BMW	545i (Base)	—	2004-2005	4.4L
BMW	645Ci (Base)	—	2004-2005	4.4L
BMW	745i (Base)	—	2004-2005	4.4L
BMW	745Li (Base)	—	2004-2005	4.4L

Fitment

Year	Make	Model
2004–2005	BMW	545i
2004–2005	BMW	645Ci
2004–2005	BMW	745i
2004–2005	BMW	745Li

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

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