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MagnaFlow 51959 universal catalytic converter, rear view of the turntable spin

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MagnaFlow 51959 universal catalytic converter, front three-quarter view of the turntable spin

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MagnaFlow 51959 universal catalytic converter, rear three-quarter view of the turntable spin

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MagnaFlow 51959 universal catalytic converter, opposite front three-quarter view of the turntable spin

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MagnaFlow 51959 universal catalytic converter, opposite side view of the turntable spin

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MagnaFlow 51959 universal catalytic converter, side view of the turntable spin

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MagnaFlow 51959 universal catalytic converter, opposite rear three-quarter view of the turntable spin

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MagnaFlow Universal Converter 2020-2023 Chevrolet Silverado 2500 HD

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Brand: MagnaflowSKU / Part #: MAG51959

Regular price: $595.00
Regular price: ~~$595.00~~
Sale price: $595.00
Unit price: per

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Subtotal: $595.00

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MagnaFlow Universal Converter 2020-2023 Chevrolet Silverado 2500 HD

Subtotal: $595.00

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Overview

Universal converter 51959 is welded into the existing pipe by an exhaust shop; confirm legality for your vehicle first. Coverage spans 4 model years: 2020-2023 Chevrolet Silverado 2500 HD (Custom, High Country, LT, LTZ, WT), 2020-2023 Chevrolet Silverado 3500 HD (High Country, LT, LTZ, WT), 2020-2023 GMC Sierra 2500 HD (AT4, Base, Denali, Pro, SLE and more) and 2020-2023 GMC Sierra 3500 HD (AT4, Base, Denali, Pro, SLE and more). Built around the 6.6L engine. Shipping weight is about 5 lb.

Features

OEM Grade loading sized for the 6.6L OBD-II catalyst monitor
Fits 2020-2023 Chevrolet Silverado 2500 HD: Custom, High Country, LT, LTZ, WT
Fits 2020-2023 Chevrolet Silverado 3500 HD: High Country, LT, LTZ, WT
Fits 2020-2023 GMC Sierra 2500 HD: AT4, Base, Denali, Pro, SLE, SLT
1 further model listed in the fitment table

Specs

Part number	51959
Type	Universal Catalytic Converter
Emissions	Federal/EPA compliant (not for CARB states)
Grade	OEM Grade
Material	16-gauge 409 stainless steel
Shipping weight	5 lb

Construction

OEM Grade catalyst loading for engines with sensitive OBD-II efficiency monitoring
Body and pipes in 16-gauge 409 stainless steel
Single laser-fusion weld on the catalyst shell
308 stainless MIG welds

Installation

Universal weld-in part: professional installation by an exhaust shop is required.

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
Chevrolet	Silverado 2500 HD (Custom, High Country, LT, LTZ, WT)	—	2020-2023	6.6L
Chevrolet	Silverado 3500 HD (High Country, LT, LTZ, WT)	—	2020-2023	6.6L
GMC	Sierra 2500 HD (AT4, Base, Denali, Pro, SLE, SLT)	—	2020-2023	6.6L
GMC	Sierra 3500 HD (AT4, Base, Denali, Pro, SLE, SLT)	—	2020-2023	6.6L

Fitment

Year	Make	Model
2020–2023	Chevrolet	Silverado 2500 HD
2020–2023	Chevrolet	Silverado 3500 HD
2020–2023	GMC	Sierra 2500 HD
2020–2023	GMC	Sierra 3500 HD

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.

Reviews & questions