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MagnaFlow OEM Grade Direct-Fit Catalytic Converter 21-758 for the 2005-2006 Buick Terraza

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MagnaFlow 21-758 oem grade direct-fit catalytic converter, front three-quarter view of the turntable spin

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MagnaFlow 21-758 oem grade direct-fit catalytic converter, opposite rear three-quarter view of the turntable spin

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MagnaFlow 21-758 oem grade direct-fit catalytic converter, side view of the turntable spin

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MagnaFlow 21-758 shown out of the box, photo 9

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MagnaFlow 21-758 oem grade direct-fit catalytic converter, opposite front three-quarter view of the turntable spin

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MagnaFlow 21-758 shown out of the box, photo 21

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MagnaFlow 21-758 shown out of the box, photo 23

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MagnaFlow 21-758 oem grade direct-fit catalytic converter, opposite side view of the turntable spin

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MagnaFlow 21-758 oem grade direct-fit catalytic converter, rear three-quarter view of the turntable spin

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MagnaFlow OEM Grade Direct-Fit Converter 2005-2006 Buick Terraza 3.5L

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Brand: MagnaflowSKU / Part #: MAG21-758

Regular price: $777.00
Regular price: ~~$777.00~~
Sale price: $777.00
Unit price: per

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Subtotal: $777.00

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MagnaFlow OEM Grade Direct-Fit Converter 2005-2006 Buick Terraza 3.5L

Subtotal: $777.00

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Overview

Efficiency codes on a 2005-2006 Buick Terraza 3.5L usually mean the original catalyst is spent. MagnaFlow's OEM Grade 21-758 is built for exactly that job and bolts in without cutting or welding. Coverage spans 2 model years: 2005-2006 Buick Terraza (CX, CXL), 2005-2006 Chevrolet Uplander (LT), 2005-2006 Pontiac Montana (SV6) and 2005-2006 Saturn Relay (3). This is the underbody converter position, so match it to the unit you are replacing. It ships at roughly 17 lb.

Features

OEM Grade loading sized for the 3.5L OBD-II catalyst monitor
Underbody position
Fits 2005-2006 Buick Terraza: CX, CXL
Fits 2005-2006 Chevrolet Uplander: LT
Fits 2005-2006 Pontiac Montana: SV6
1 further model listed in the fitment table

What is in the box

Gaskets and mounting hardware for installation

Specs

Part number	21-758
Type	OEM Grade Direct-Fit Catalytic Converter
Emissions	Federal/EPA compliant (not for CARB states)
Grade	OEM Grade
Material	16-gauge 409 stainless steel
Shipping weight	17 lb

Construction

OEM Grade catalyst loading for engines with sensitive OBD-II efficiency monitoring
Installs at the factory mounting points without cutting or welding
Body and pipes in 16-gauge 409 stainless steel
Spun body closed with a single laser-fusion weld to resist leaks
Mandrel-bent inlet and outlet pipes keep factory flow
OE-sized 410 stainless hangers
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

Sold for federal (EPA) emissions use only; it cannot be sold or installed in California, Colorado or New York. Check the fitment table below against your vehicle, including trim and engine.

Fitment

Make	Model	Chassis	Year	Engine
Buick	Terraza (CX, CXL)	—	2005-2006	3.5L
Chevrolet	Uplander (LT)	—	2005-2006	3.5L
Pontiac	Montana (SV6)	—	2005-2006	3.5L
Saturn	Relay (3)	—	2005-2006	3.5L

Fitment

Year	Make	Model
2005–2006	Buick	Terraza
2005–2006	Chevrolet	Uplander
2005–2006	Pontiac	Montana
2005–2006	Saturn	Relay

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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