20+ 2018 GMC Yukon XL Mufflers & Resonators Parts

Mufflers & Resonators (20 products)

Quiet-Flow SS Direct Fit Exhaust Muffler 2.625" Inlet (ID) 2.625" Outlet (ID)

Walker Exhaust

Part # 21614

Fits All Trims

Quiet-Flow SS Direct Fit Exhaust Muffler 2.625" Inlet (ID) 2.625" Outlet (ID)

$90.96

Kooks 14+ GM 1500 Series Truck 5.3L 3in x OEM Out GREEN Cat SS Y Pipe Kooks HDR Req

Kooks Headers

Part # 28603300

Choose Trim

Kooks 14+ GM 1500 Series Truck 5.3L 3in x OEM Out GREEN Cat SS Y Pipe Kooks HDR Req

$2381.59

AP Exhaust

Part # 2549

Fits All Trims

Muffler - Challenge

$80.38

Magnaflow

Part # 51656

Fits All Trims

MagnaFlow Conv Univ 2.5in Inlet/Outlet Center/Center Round 3in Body L x 5in W x 8.75in Overall L

$306.00

Corsa 2009-2013 Inlet 4in Pro Series Twin Side Swept Exhaust Tip Kit

CORSA Performance

Part # 14031

Fits All Trims

Corsa 2009-2013 Inlet 4in Pro Series Twin Side Swept Exhaust Tip Kit

$349.18

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Gasket

Victor Reinz

Part # F31619

Fits All Trims

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Gasket

$26.24

Magnaflow

Part # 52642

Choose Trim

MagnaFlow Conv Direct Fit 14-16 GMC Sierra 1500 V6 4.3L

$1013.00

Magnaflow

Part # 51046

Fits All Trims

MagnaFlow Conv Univ 2.50in C/C Spun Front OEM

$260.00

Fel-Pro

Part # 61074

Fits All Trims

Fel-Pro 14-21 Chevrolet Silverado 1500/18-22 Suburban/18-22 Tahoe Exhaust Pipe Flange Gasket

$5.71

Kooks 14+ GM 1500 Series Truck 5.3L 3in x OEM Out Cat SS Y Pipe Kooks HDR Req

Kooks Headers

Part # 28603200

Choose Trim

Kooks 14+ GM 1500 Series Truck 5.3L 3in x OEM Out Cat SS Y Pipe Kooks HDR Req

$1805.59

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Packing Ring

Victor Reinz

Part # F31618

Fits All Trims

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Packing Ring

$20.21

Kooks 14+ GM 1500 Series Truck 6.2L 3in x OEM Out GREEN Cat SS Y Pipe Kooks HDR Req

Kooks Headers

Part # 28613300

Choose Trim

Kooks 14+ GM 1500 Series Truck 6.2L 3in x OEM Out GREEN Cat SS Y Pipe Kooks HDR Req

$2417.11

Kooks 14+ GM 1500 Series Truck 6.2L 3in x OEM Out Cat SS Y Pipe Kooks HDR Req

Kooks Headers

Part # 28613200

Choose Trim

Kooks 14+ GM 1500 Series Truck 6.2L 3in x OEM Out Cat SS Y Pipe Kooks HDR Req

$1841.11

Magnaflow

Part # 52617

Choose Trim

MagnaFlow Converter Direct Fit 2015 GMC Yukon XL V8 6.2L

$1789.00

Corsa 1999-2006 Universal Stainless Steel Twin 4.0in Black PVD Pro-Series Tip

CORSA Performance

Part # 14031BLK

Fits All Trims

Corsa 1999-2006 Universal Stainless Steel Twin 4.0in Black PVD Pro-Series Tip

$390.14

Kooks 14-22 Chevy Silverado 1500 LT V8 5.3L (Multi-Layer Stainless Steel) Exhaust Gaskets

Kooks Headers

Part # SS-755897

Fits All Trims

Kooks 14-22 Chevy Silverado 1500 LT V8 5.3L (Multi-Layer Stainless Steel) Exhaust Gaskets

$60.11

Magnaflow

Part # 51049

Fits All Trims

MagnaFlow Conv Univ 3.00in C/C Spun Front OEM

$260.00

Fel-Pro

Part # 61089

Fits All Trims

Fel-Pro 14-21 Chevrolet Silverado 1500/17-22 Cadillac Escalade Exhaust Pipe Flange Gasket

$6.44

Cometic Corvette C7 Gen 5 SBC 6.2L LT1 .021in MLS Exhaust Gasket (1.920in)

Cometic Gasket

Part # C5020-021

Choose Trim

Cometic Corvette C7 Gen 5 SBC 6.2L LT1 .021in MLS Exhaust Gasket (1.920in)

$63.58

Cometic GM Gen-V Small Block V8 .060in HTS Exhaust Header Gasket Set

Cometic Gasket

Part # C5020HTS

Choose Trim

Cometic GM Gen-V Small Block V8 .060in HTS Exhaust Header Gasket Set

$45.57

All 20 products shown

Frequently Asked Questions

Do these parts fit my 2018 GMC Yukon XL?

This page groups parts listed for the 2018 GMC Yukon XL. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.

What mufflers & resonators options are available for my 2018 GMC Yukon XL?

We offer a wide selection of mufflers & resonators parts for the 2018 GMC Yukon XL. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.

What brands make parts for the 2018 GMC Yukon XL?

We carry parts from trusted brands including Kooks Headers, Magnaflow, Cometic Gasket, CORSA Performance, and Fel-Pro, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 2018 GMC Yukon XL parts ship?

Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.

What warranty do your 2018 GMC Yukon XL parts come with?

Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.

2018 GMC Yukon XL(1,854 parts)

2018 GMC Yukon XL(1,854 parts)

Shop by Problem

Other GMC Yukon XL Years

Mufflers & Resonators (20 products)

Quiet-Flow SS Direct Fit Exhaust Muffler 2.625" Inlet (ID) 2.625" Outlet (ID)

Kooks 14+ GM 1500 Series Truck 5.3L 3in x OEM Out GREEN Cat SS Y Pipe Kooks HDR Req

Muffler - Challenge

MagnaFlow Conv Univ 2.5in Inlet/Outlet Center/Center Round 3in Body L x 5in W x 8.75in Overall L

Corsa 2009-2013 Inlet 4in Pro Series Twin Side Swept Exhaust Tip Kit

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Gasket

MagnaFlow Conv Direct Fit 14-16 GMC Sierra 1500 V6 4.3L

MagnaFlow Conv Univ 2.50in C/C Spun Front OEM

Fel-Pro 14-21 Chevrolet Silverado 1500/18-22 Suburban/18-22 Tahoe Exhaust Pipe Flange Gasket

Kooks 14+ GM 1500 Series Truck 5.3L 3in x OEM Out Cat SS Y Pipe Kooks HDR Req

MAHLE Original Buick Rainier 07-04 Exhaust Pipe Packing Ring

Kooks 14+ GM 1500 Series Truck 6.2L 3in x OEM Out GREEN Cat SS Y Pipe Kooks HDR Req

Kooks 14+ GM 1500 Series Truck 6.2L 3in x OEM Out Cat SS Y Pipe Kooks HDR Req

MagnaFlow Converter Direct Fit 2015 GMC Yukon XL V8 6.2L

Corsa 1999-2006 Universal Stainless Steel Twin 4.0in Black PVD Pro-Series Tip

Kooks 14-22 Chevy Silverado 1500 LT V8 5.3L (Multi-Layer Stainless Steel) Exhaust Gaskets

MagnaFlow Conv Univ 3.00in C/C Spun Front OEM

Fel-Pro 14-21 Chevrolet Silverado 1500/17-22 Cadillac Escalade Exhaust Pipe Flange Gasket

Cometic Corvette C7 Gen 5 SBC 6.2L LT1 .021in MLS Exhaust Gasket (1.920in)

Cometic GM Gen-V Small Block V8 .060in HTS Exhaust Header Gasket Set

Frequently Asked Questions

Do these parts fit my 2018 GMC Yukon XL?

What mufflers & resonators options are available for my 2018 GMC Yukon XL?

What brands make parts for the 2018 GMC Yukon XL?

How fast do 2018 GMC Yukon XL parts ship?

What warranty do your 2018 GMC Yukon XL parts come with?