Thanks for contacting us! We'll get back to you as soon as possible

MagnaFlow Street Series Cat-Back Exhaust 19378 for the 2014-2018 GMC Sierra 1500

}

MagnaFlow 19378 main product photo, alternate angle 2

}

MagnaFlow Street Series Cat-Back Exhaust 2014-2018 GMC Sierra 1500

Ask an expert

Brand: MagnaflowSKU / Part #: MAG19378

Regular price: $1,295.00
Regular price: ~~$1,860.19~~
Sale price: $1,295.00
Unit price: per

Apply at checkout

Subtotal: $1,295.00

Quantity:

MagnaFlow Street Series Cat-Back Exhaust 2014-2018 GMC Sierra 1500

Subtotal: $1,295.00

Not sure it fits? Text us your VINSee all fitment

Questions before you buy? Talk to a specialist.

Fitment and product questions · 9am–6pm Pacific

Call(310) 231-0292 Text(310) 886-3111 ChatLive chat

Price match: found it cheaper?
Secure checkout · Shop Pay · Affirm
AutoTalent since 2006

Free Shipping

Free standard shipping on orders over $99

Coupon Code on First Order

Price Match Guarantee

Free shipping on $99+ order

30-days Returns

Overview

Give the 2014-2018 GMC Sierra 1500 6.2L a sound upgrade with the MagnaFlow Street Series Cat-Back Exhaust 19378. Sound rating: moderate from outside, mild in the cabin. It is catalogued for the 2014-2018 GMC Sierra 1500 (Denali, SLT) and 2014-2018 Chevrolet Silverado 1500 (High Country, LTZ). Built around the 6.2L engine. Shipping weight is about 60 lb.

Features

Fits 2014-2018 GMC Sierra 1500: Denali, SLT
Fits 2014-2018 Chevrolet Silverado 1500: High Country, LTZ
3.5in stainless tubing
1 straight-through muffler
Round band clamped joints
Tailpipe layout: dual outlets grouped on the passenger side, just aft of the rear wheel
4in black coated double wall angle cut tips

Sound

Exterior: Moderate
Interior: Mild

What is in the box

Complete cat-back exhaust
4 x 3.5in band clamps

Specs

Part number	19378
Series	Street
Type	Street Series Cat-Back Exhaust
Inlet Type	Clamp-On
Exhaust Tip Quantity	2
Exhaust Tip Diameter	4in
Exhaust Tip Finish	Black Coated
Exhaust Tip Material	Stainless Steel
Muffler Type	Straight-Through
Clamps Included	Yes
Muffler Body Length	22in
Pipe Material	Stainless Steel
Clamping Type	Round Band
Hangers Included	Yes
Muffler Body Material	Stainless Steel
Muffler Quantity	1
Exit Style	Dual Same Side Behind Passenger Rear Tire
Main Piping Diameter	3.5in
Exhaust Tip Connection	Welded-On
Exhaust Tip Wall	Double Wall
Exhaust Tip Cut	Angle Cut
Exhaust Tip Edge	Folded Edge
Muffler Finish	Brushed
Muffler Body Height	5in
Muffler Body Width	11in
Exhaust Tip Length	15.375in
Exhaust Tip Shape	Round
Shipping weight	60 lb

Warranty

MagnaFlow covers the construction of this system with a limited lifetime warranty, and the finish carries a 1-year limited warranty.

Installation

Direct-fit and bolt-on; a capable DIYer can install it with the right tools, though professional installation is recommended. Download the MagnaFlow 19378 installation guide (PDF).

Fitment notes

Check the fitment table below against your vehicle, including trim and engine.

Fitment

Make	Model	Chassis	Year	Engine
GMC	Sierra 1500 (Denali, SLT)	—	2014-2018	6.2L
Chevrolet	Silverado 1500 (High Country, LTZ)	—	2014-2018	6.2L

Fitment

Year	Make	Model
2014–2018	GMC	Sierra 1500
2014–2018	Chevrolet	Silverado 1500

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