{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
2020 GMC Sierra 1500

2020 GMC Sierra 1500 Mufflers

Refine by:

Shop Catalog

Showing 1 - 15 of 480 results
Display item:
15
30
45
Sort by:
Muffler
Part Number: M6619533
Guaranteed to Fit
$679.00
Vehicle Fitment
  • 2020 GMC Sierra 1500 Elevation 8 Cyl 5.3L Crew Cab Pickup
  • 2020 GMC Sierra 1500 SLT 8 Cyl 5.3L Extended Cab Pickup
  • 2020 GMC Sierra 1500 Base 8 Cyl 5.3L Extended Cab Pickup
  • 2020 GMC Sierra 1500 Base 6 Cyl 4.3L Crew Cab Pickup
  • 2020 GMC Sierra 1500 AT4 8 Cyl 5.3L Extended Cab Pickup
  • 2020 GMC Sierra 1500 SLE 8 Cyl 5.3L Crew Cab Pickup
  • 2020 GMC Sierra 1500 Denali 8 Cyl 5.3L Crew Cab Pickup
Product Details
Color Finish : NaturalQuantity Sold : KitWarranty : Lifetime Magnaflow Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : Performance Replacement
Muffler, Natural, Offset/Center, Reversible
Part Number: D2217233
Guaranteed to Fit
$166.99
Vehicle Fitment
  • 2020 GMC Sierra 1500 AT4 8 Cyl 5.3L Offset/Center; Reversible
  • 2020 GMC Sierra 1500 SLT 8 Cyl 5.3L Offset/Center; Reversible
  • 2020 GMC Sierra 1500 SLE 8 Cyl 5.3L Offset/Center; Reversible
  • 2020 GMC Sierra 1500 Denali 8 Cyl 5.3L Offset/Center; Reversible
  • 2020 GMC Sierra 1500 Elevation 8 Cyl 5.3L Offset/Center; Reversible
  • 2020 GMC Sierra 1500 Base 8 Cyl 5.3L Offset/Center; Reversible
Product Details
Series : Ultra Flo Welded SeriesInlet Size : 3 in. Inlet SizeOutlet Size : 3 in. Outlet SizeColor Finish : NaturalQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Attachment Style : Weld-OnSound Level : AggressiveMaterial : Made of Stainless SteelRecommended Use : Performance ReplacementInlet Quantity : SingleOutlet Location : CenterCase Shape : OvalOverall Length : 25 in. overall lengthOutlet Quantity : Single Outlet(s)Internal Construction : Straight-ThroughInlet Location : OffsetHeight : 4.5 in. HeightBody Length : 20 in. Body LengthWidth : 9.75 in. Width
Muffler, Natural, with BORLA ATAK Cat-Back System
Part Number: B2560679
Guaranteed to Fit
$211.99
Vehicle Fitment
  • 2020 GMC Sierra 1500 AT4 8 Cyl 6.2L With BORLA ATAK Cat-Back System
  • 2020 GMC Sierra 1500 SLT 8 Cyl 6.2L With BORLA ATAK Cat-Back System
  • 2020 GMC Sierra 1500 Denali 8 Cyl 6.2L With BORLA ATAK Cat-Back System
Product Details
Location : RearSeries : S-type SeriesInlet Size : 3.5 in. Inlet SizeOutlet Size : 3.5 in. Outlet SizeColor Finish : NaturalQuantity Sold : Sold individuallyWarranty : Million-mile Borla limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Material : 304 stainless steelRecommended Use : Performance ReplacementInlet Quantity : 1 InletOutlet Location : OffsetCase Shape : RoundOutlet Quantity : 1 OutletInternal Construction : TurboInlet Location : Offset
Muffler
Part Number: D2217547
Guaranteed to Fit
$217.99
Vehicle Fitment
  • 2020 GMC Sierra 1500 AT4 8 Cyl 5.3L
  • 2020 GMC Sierra 1500 Denali 8 Cyl 5.3L
  • 2020 GMC Sierra 1500 Elevation 8 Cyl 5.3L
  • 2020 GMC Sierra 1500 SLT 8 Cyl 5.3L
  • 2020 GMC Sierra 1500 SLE 8 Cyl 5.3L
  • 2020 GMC Sierra 1500 Base 8 Cyl 5.3L
Product Details
Series : Ultra Flo Welded SeriesInlet Size : 3 in. Inlet SizeOutlet Size : 3 in. Outlet SizeColor Finish : NaturalQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Attachment Style : Weld-OnSound Level : AggressiveMaterial : Made of Stainless SteelRecommended Use : Performance ReplacementInlet Quantity : SingleOutlet Location : OffsetCase Shape : OvalOverall Length : 27 in. overall lengthOutlet Quantity : Single Outlet(s)Internal Construction : Straight-ThroughInlet Location : OffsetHeight : 4.5 in. HeightBody Length : 20 in. Body LengthWidth : 9.75 in. Width
Muffler, Natural, This Item Does Not Fit Models with Rear Exhaust Valve
Part Number: A1549C44137
Guaranteed to Fit
$213.00
Vehicle Fitment
  • 2020 GMC Sierra 1500 AT4 8 Cyl 6.2L This item does not fit models with rear exhaust valve
  • 2020 GMC Sierra 1500 SLT 8 Cyl 6.2L This item does not fit models with rear exhaust valve
  • 2020 GMC Sierra 1500 Denali 8 Cyl 6.2L This item does not fit models with rear exhaust valve
Product Details
Location : RearSeries : Apollo GT SeriesColor Finish : NaturalQuantity Sold : Sold individuallyWarranty : 2-year AFE limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Sound Level : ModerateMaterial : 409 Stainless SteelRecommended Use : Performance Replacement
Muffler
Part Number: A1549C44121
Guaranteed to Fit
$225.00
Vehicle Fitment
  • 2020 GMC Sierra 1500 Base 8 Cyl 5.3L
Product Details
Series : Apollo GT SeriesColor Finish : NaturalQuantity Sold : Sold individuallyWarranty : 90-day AFE limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE ReplacementProduct Fit : Direct Fit
Muffler, This Item Will Only Fit Models with Dual Front and Rear Valves
Part Number: A1549C44114
Guaranteed to Fit
$225.00
Vehicle Fitment
  • 2020 GMC Sierra 1500 Denali 8 Cyl 6.2L This item will only fit models with dual front and rear valves
  • 2020 GMC Sierra 1500 AT4 8 Cyl 6.2L This item will only fit models with dual front and rear valves
  • 2020 GMC Sierra 1500 SLT 8 Cyl 6.2L This item will only fit models with dual front and rear valves
Product Details
Quantity Sold : Sold individuallyWarranty : 2-year AFE limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Muffler, Stainless, with Active Valve
Part Number: F13717911
Guaranteed to Fit
$758.95
Vehicle Fitment
  • 2020 GMC Sierra 1500 Elevation 8 Cyl 5.3L With Active Valve
  • 2020 GMC Sierra 1500 SLT 8 Cyl 5.3L With Active Valve
  • 2020 GMC Sierra 1500 SLE 8 Cyl 5.3L With Active Valve
  • 2020 GMC Sierra 1500 Base 8 Cyl 5.3L With Active Valve
  • 2020 GMC Sierra 1500 Denali 8 Cyl 5.3L With Active Valve
  • 2020 GMC Sierra 1500 AT4 8 Cyl 5.3L With Active Valve
Product Details
Series : FlowFX SeriesColor Finish : StainlessQuantity Sold : AssemblyWarranty : Lifetime Flowmaster Limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Sound Level : Moderate to AggressiveTip Diameter : 3 in.Recommended Use : Performance Replacement
Muffler
Part Number: APE2621
Guaranteed to Fit
$104.99
Vehicle Fitment
  • 2020 GMC Sierra 1500 AT4 8 Cyl 5.3L
  • 2020 GMC Sierra 1500 Denali 8 Cyl 5.3L
  • 2020 GMC Sierra 1500 Elevation 8 Cyl 5.3L
  • 2020 GMC Sierra 1500 SLT 8 Cyl 5.3L
  • 2020 GMC Sierra 1500 Base 8 Cyl 5.3L
  • 2020 GMC Sierra 1500 SLE 8 Cyl 5.3L
Product Details
Quantity Sold : Sold individuallyWarranty : 5-year or 50,000-mile AP Exhaust limited warranty on converter body and 25,000-mile limited warranty on emissionsRecommended Use : Performance
Afterburner Series Muffler, Natural
Part Number: F3150370
Universal Fit
$130.95
Product Details
Series : Afterburner SeriesInlet Size : 3 in. Inlet SizeOutlet Size : 2.5 in. Outlet SizeColor Finish : NaturalQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Attachment Style : Weld-On or Clamp-OnSound Level : AggressiveMaterial : Made of Aluminized SteelRecommended Use : Performance ReplacementProduct Fit : UniversalInlet Quantity : SingleOutlet Location : OffsetCase Shape : OvalOverall Length : 18 in. overall lengthOutlet Quantity : Dual Outlet(s)Internal Construction : ChamberedInlet Location : CenterHeight : 4 in. HeightBody Length : 13 in. Body LengthWidth : 10 in. Width
Muffler, Black
Part Number: F139425422
Universal Fit
$120.55
Product Details
Notes : May Require Minor ModificationSeries : 40 Series Delta Flow SeriesInlet Size : 2.5 in. Inlet SizeOutlet Size : 2.25 in. Outlet SizeColor Finish : BlackQuantity Sold : Sold individuallyWarranty : 3-year Flowmaster limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Attachment Style : Clamp-On or Weld-OnSound Level : AggressiveMaterial : Made of Aluminized SteelRecommended Use : Performance ReplacementProduct Fit : May Require Minor ModificationInlet Quantity : SingleOutlet Location : Center (Dual)Case Shape : OvalOverall Length : 19 in. Overall LengthOutlet Quantity : Dual Outlet(s)Internal Construction : ChamberedInlet Location : CenterHeight : 4 in. HeightBody Length : 13 in. Body LengthWidth : 9.75 in. Width
Muffler, Black
Part Number: F13942545
Universal Fit
$102.55
Product Details
Notes : May Require Minor ModificationSeries : Super 44 SeriesInlet Size : 2.5 in. Inlet SizeOutlet Size : 2.5 in. Outlet SizeColor Finish : BlackQuantity Sold : Sold individuallyWarranty : 3-year Flowmaster limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Sound Level : AggressiveProduct Fit : May Require Minor ModificationInlet Quantity : SingleOutlet Quantity : Single Outlet(s)Internal Construction : ChamberedInlet Location : CenterHeight : 4 in. HeightBody Length : 13 in. Body LengthWidth : 9.75 in. WidthAttachment Style : Clamp-On or Weld-OnMaterial : Made of Aluminized SteelRecommended Use : Performance ReplacementOutlet Location : CenterCase Shape : OvalOverall Length : 19 in. Overall LengthInterchange Part Number : REPC961101
Muffler, Black
Part Number: F138430152
Universal Fit
$89.95
Product Details
Series : Super 10 SeriesInlet Size : 3 in. Inlet SizeOutlet Size : 2.5 in. Outlet SizeColor Finish : BlackQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Attachment Style : Clamp-On or Weld-OnSound Level : AggressiveMaterial : Made of Stainless SteelRecommended Use : Performance ReplacementInlet Quantity : SingleOutlet Location : Center (Dual)Case Shape : OvalOverall Length : 12.5 in. overall lengthOutlet Quantity : Dual Outlet(s)Internal Construction : ChamberedInlet Location : CenterHeight : 4 in. HeightBody Length : 6.5 in. Body Length
Muffler, Black
Part Number: F139430452
Universal Fit
$102.55
Product Details
Series : Super 44 SeriesInlet Size : 3 in. Inlet SizeOutlet Size : 2.5 in. Outlet SizeColor Finish : BlackQuantity Sold : Sold individuallyWarranty : 3-year Flowmaster limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Attachment Style : Clamp-On or Weld-OnSound Level : AggressiveMaterial : Made of Aluminized SteelRecommended Use : Performance ReplacementProduct Fit : May Require Minor ModificationInlet Quantity : SingleOutlet Location : Center (Dual)Case Shape : OvalOverall Length : 19 in. Overall LengthOutlet Quantity : Dual Outlet(s)Internal Construction : ChamberedInlet Location : CenterHeight : 4 in. HeightBody Length : 13 in. Body LengthWidth : 9.75 in. Width
Muffler, Black
Part Number: F139425472
Universal Fit
$102.55
Product Details
Notes : May Require Minor ModificationSeries : Super 44 SeriesInlet Size : 2.5 in. Inlet SizeOutlet Size : 2.5 in. Outlet SizeColor Finish : BlackQuantity Sold : Sold individuallyWarranty : 3-year Flowmaster limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Sound Level : AggressiveProduct Fit : May Require Minor ModificationInlet Quantity : SingleOutlet Quantity : Dual Outlet(s)Internal Construction : ChamberedInlet Location : CenterHeight : 4 in. HeightBody Length : 13 in. Body LengthWidth : 9.75 in. WidthAttachment Style : Clamp-On or Weld-OnMaterial : Made of Aluminized SteelRecommended Use : Performance ReplacementExhaust Tip Material : Tip Made of Stainless SteelOutlet Location : Center (Dual)Case Shape : OvalExhaust Tip Finish : Polished TipOverall Length : 19 in. Overall Length
Page 1 of 32 | Showing 1 - 15 of 480 results

Popular Products

Helpful Automotive Resources

Muffler Replacement Cost Estimates, FAQs, and More
Muffler Replacement Cost Estimates, FAQs, and MoreThe muffler silences the engine exhaust. When the exhaust valve opens, a high-pressure gas is released, sending a strong air pressure wave through the atmosphere in the exhaust system.
Improve Your Exhaust Note With These Exhaust System Parts
Improve Your Exhaust Note With These Exhaust System PartsChoosing your header’s material is important because the header plays a big role in your vehicle’s exhaust note and the engine’s acoustics. Generally speaking, stainless steel exhaust parts create a clean and high-pitched metallic noise. One way to describe it is like how aluminum cans reverberate sound. Meanwhile, steel exhaust
Exhaust Coupling Alternatives (No Welding Needed)
Exhaust Coupling Alternatives (No Welding Needed)The engine exhaust initially contains oxides of nitrogen, hydrocarbons, and carbon monoxide. The front part of the catalytic converter nearest the manifold handles the oxides of nitrogen, but the second part is needed for hydrocarbons and carbon monoxide.
Is There a Strong Exhaust Smell Outside Your Car? Here’s Why
Is There a Strong Exhaust Smell Outside Your Car? Here’s WhyThere can be a number of reasons why there’s a strong exhaust smell coming from outside your car. Here are the most common ones. Damaged Catalytic Converter The catalytic converter has layers that convert sulfur into sulfur dioxide, which is an odorless gas. If it gets damaged, the vehicle can exude a
Why Is My Car So Loud?: 12 Causes of Loud Engine Noise
Why Is My Car So Loud?: 12 Causes of Loud Engine NoiseIf you hear a rattling noise from the catalytic converter, it could mean that it’s close to failure. The converter has a lot of small parts inside that could break off over time. When this happens, they might rattle around inside the converter while the engine is running.
Common Types of Mufflers
Common Types of MufflersAlso called the resonator chamber or simply resonator, the resonating chamber amplifies and tunes the exhaust sounds into something more attractive and pleasant to human ears. The muffler can have multiple resonators and lays them out at specific lengths. Combined with metal plates, the chambers bounce sound waves together, causing