2021 GMC Sierra 2500 HD Exhaust System Kit Parts
Choose your Engine for your 2021 GMC Sierra 2500 HD
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- 4 in.; 5 in. Outlet Diameter Tip; Single Side Exit; Aluminized;Meets EPA Standards
- Armor Lite Filter Back Exhaust System; 4 in.; 5 in. Outlet Diameter Tip; Single Side Exit; Aluminized;
- Armor Lite Filter Back Exhaust System
- Product Attributes:
- Exhaust Type: Filter-back
- Exit Position: Single Side
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: This Product Can Expose You To Chemicals Including Nickel (metallic) And Chromium (hexavalent Compounds) Which Are Known To The State Of California To Cause Cancer And Birth Defects; Or Other Reproductive Harm
-
Features:
- Rugged And Dependable
- Stands Up To The Harshest Road Conditions
- Performance Gains That You Can Feel
- Delivers The Power
- Bolt On Design
- 3 Year Warranty
- THE BEST BANG FOR YOUR BUCK - ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP. Heavy-gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great choice for you if you live in a dry climate that doesn't see much precipitation, or if you're looking for great sound on a budget. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine's cylinders, allowing it to produce more power and improve vehicle performance and longevity. MBRP, Stand out from the crowd with a performance exhaust system that sounds great.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Bed Length | Body | CID |
|---|---|---|---|---|---|---|
| 2021 - GMC Sierra 2500 HD | V | 6599 | 8 Cyl 6.6L | 82.2 | Crew Cab Pickup | 403 |
- Armor Lite Filter Back Exhaust System
- 4 in.; 5 in. Outlet Diameter Tip; Single Side Exit; Aluminized
- Armor Lite Filter Back Exhaust System; 4 in.; 5 in. Outlet Diameter Tip; Single Side Exit; Aluminized;
- Installer Series Filter Back Exhaust System
- Product Attributes:
- Exhaust Type: Filter-back
- Exit Position: Single Side
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message:
- Warning: This Product Can Expose You To Chemicals Including Nickel (metallic) And Chromium (hexavalent Compounds) Which Are Known To The State Of California To Cause Cancer And Birth Defects; Or Other Reproductive Harm
- Warning: This Product Can Expose You To Chemicals Including Nickel (metallic) And Chromium (hexavalent Compounds) Which Are Known To The State Of California To Cause Cancer And Birth Defects; Or Other Reproductive Harm - Www.p65warnings.ca.gov
-
Features:
- Rugged And Dependable
- Stands Up To The Harshest Road Conditions
- Performance Gains That You Can Feel
- Delivers The Power
- Bolt On Design
- 3 Year Warranty
- THE BEST BANG FOR YOUR BUCK - ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP. Heavy-gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great choice for you if you live in a dry climate that doesn't see much precipitation, or if you're looking for great sound on a budget. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine's cylinders, allowing it to produce more power and improve vehicle performance and longevity. MBRP, Stand out from the crowd with a performance exhaust system that sounds great.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Bed Length | Body | CID |
|---|---|---|---|---|---|---|
| 2021 - GMC Sierra 2500 HD | V | 6599 | 8 Cyl 6.6L | 82.2 | Crew Cab Pickup | 403 |
- 3.5 To 3.0 in. Tubing; 409 Stainless Steel; 4.0 in. Dual Polished Tips; Includes Installation Hardware;50 State Legal / California Emissions Compliant
- Outlaw Series™ Cat Back Exhaust System; 3.5 To 3.0 in. Tubing; 409 Stainless Steel; 4.0 in. Dual Polished Tips; Includes Installation Hardware;
- Outlaw Series™ Cat Back Exhaust System
- Product Attributes:
- Exhaust Type: Cat-back
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
-
Features:
- Max Increases Of Up To 9 Hp And 9 Lb.Ft. Over The Stock Exhaust At The Rear Wheels
- 3.50 And 3.00 In. Mandrel Bent 16-Gauge 409 Stainless Steel Tubing Maximizes Exhaust Flow And Improves Durability
- Dual 4.00-Inch Polished Stainless Steel Tips Add A Custom Look
- Includes Complete Hardware And Factory Styled Hangers In The Stock Locations For An Easy Installation
- Backed By Flowmaster s Lifetime Limited Warranty
- Can Be Configured To Exit Straight Out The Rear Or Out The Side Depending On Preference
- This Flowmaster(R) Outlaw(R) Cat-back exhaust system for the 2020-2022 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L gas engine, is perfect if you are looking for an aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster(R). Maximum increases of up to 9 hp and 9 lb. Ft. over the stock exhaust at the rear wheels. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel Outlaw series muffler and large dual 3.00-inch 409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications. The system is finished off with polished 4.00-inch stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Bed Length | Body | CID |
|---|---|---|---|---|---|---|
| 2021 - GMC Sierra 2500 HD | V | 6571 | 8 Cyl 6.6L | 82.2 | Crew Cab Pickup | 401 |
- Single; Dual Rear Same Side Exit; Includes 3 in. Tailpipes/50 Series(TM) HD Muffler/4 in. Stainless Tips; 409 Stainless Steel;50 State Legal / California Emissions Compliant
- American Thunder Cat Back Exhaust System; Single; Dual Rear Same Side Exit; Includes 3 in. Tailpipes/50 Series™ HD Muffler/4 in. Stainless Tips; 409 Stainless Steel;
- American Thunder Cat Back Exhaust System
- Product Attributes:
- Exhaust Type: Cat-back
- Exit Position: Dual Out Rear/ Dual Out Side
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
-
Features:
- Mandrel Bent 16 Gauge 409 Stainless Tubing
- Uses The Factory Hanger Locations To Ease Installation
- 50 Series HD Muffler With Delta Flow Technology
- Increased Performance And Exhaust Flow
- Multiple Tailpipe Exits Provided In Kit
- Deep Powerful Exterior Sound
- Large 3 in. Dual Tailpipes
- Lifetime Limited Warranty
- Flowmaster Quality
- The Flowmaster American Thunder Cat-back exhaust system for the 2020-2022 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L gas engine, has a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits you expect from Flowmaster. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel 50 Series HD muffler and large dual 3.00-inch 409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications. The system is finished off with a pair of large 4.00-inch polished 304 stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Notes: Fits Crew Cab with 6.5 bed length, 159-inch wheelbase only.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Bed Length | Body | CID |
|---|---|---|---|---|---|---|
| 2021 - GMC Sierra 2500 HD | V | 6571 | 8 Cyl 6.6L | 82.2 | Crew Cab Pickup | 401 |
- Outlaw Series™ Cat Back Exhaust System
- 3.5 To 3.0 in. Tubing; 409 Stainless Steel; 4.0 in. Dual Polished Tips; Includes Installation Hardware;50 State Legal / California Emissions Compliant
- Outlaw Series™ Cat Back Exhaust System; 3.5 To 3.0 in. Tubing; 409 Stainless Steel; 4.0 in. Dual Polished Tips; Includes Installation Hardware;
- Outlaw Series(TM) Cat Back Exhaust System
- Product Attributes:
- Exhaust Type: Cat-back
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
-
Features:
- Max Increases Of Up To 9 Hp And 9 Lb.Ft. Over The Stock Exhaust At The Rear Wheels
- 3.50 And 3.00 In. Mandrel Bent 16-Gauge 409 Stainless Steel Tubing Maximizes Exhaust Flow And Improves Durability
- Dual 4.00-Inch Polished Stainless Steel Tips Add A Custom Look
- Includes Complete Hardware And Factory Styled Hangers In The Stock Locations For An Easy Installation
- Backed By Flowmaster s Lifetime Limited Warranty
- Can Be Configured To Exit Straight Out The Rear Or Out The Side Depending On Preference
- This Flowmaster(R) Outlaw(R) Cat-back exhaust system for the 2020-2022 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L gas engine, is perfect if you are looking for an aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster(R). Maximum increases of up to 9 hp and 9 lb. Ft. over the stock exhaust at the rear wheels. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel Outlaw series muffler and large dual 3.00-inch 409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications. The system is finished off with polished 4.00-inch stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Bed Length | Body | CID |
|---|---|---|---|---|---|---|
| 2021 - GMC Sierra 2500 HD | V | 6571 | 8 Cyl 6.6L | 82.2 | Crew Cab Pickup | 401 |
- 4 in.; 5 in. Outlet Diameter Tip; Single Side Exit; T304 Stainless Steel;Meets EPA Standards
- Armor Pro Filter Back Exhaust System; 4 in.; 5 in. Outlet Diameter Tip; Single Side Exit; T304 Stainless Steel;
- Armor Pro Filter Back Exhaust System
- Product Attributes:
- Exhaust Type: Filter-back
- Exit Position: Single Side
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: This Product Can Expose You To Chemicals Including Nickel (metallic) And Chromium (hexavalent Compounds) Which Are Known To The State Of California To Cause Cancer And Birth Defects; Or Other Reproductive Harm
-
Features:
- Improved Torque And Horsepower
- Lower Exhaust Gas Temperatures
- Increased Throttle Response
- Mellow Exhaust Note
- Bolt On Design
- Utilizes OEM Hangers
- Stainless Steel Tips Are Included
- Lifetime Warranty
- THE ONLY EXHAUST YOU'LL EVER NEED - MBRP ARMOR PRO Series exhaust systems are backed by a Lifetime Warranty and crafted out of T304Stainless Steel - the most durable material grade that money can buy. The T304 Stainless Steel tubing is easy to clean and maintain. It's the obvious choice for you if you operate your vehicle in extreme conditions. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine's cylinders, allowing it to produce more power and improve vehicle performance and longevity. MBRP, Stand out from the crowd with a performance exhaust system that sounds great.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Bed Length | Body | CID |
|---|---|---|---|---|---|---|
| 2021 - GMC Sierra 2500 HD | V | 6599 | 8 Cyl 6.6L | 82.2 | Crew Cab Pickup | 403 |
- Black DPF Series Diesel 5in. Filter-Back
- Single Passenger Side Rear Exit
- Black DPF Series Diesel 5in. Filter-Back
- Black Series Diesel 5in. Filter-Back
- Product Attributes:
- Hangers Included: Yes
- Tip Finish: Black Coated
- Exit Style: Single Passenger Side Rear
- Tip Length: 13
- Tip Type: Welded-on;single Wall;angle Cut;rolled Edge;intercooled
- Muffler Quantity: 0
- Mounting Bracket Included: No
- Subtitle: Filter-back
- Main Piping Diameter: 5
- Tip Diameter: 6
- Valve Included: No
- Tip Shape: Round
- Clamp Type: Band Clamp
- Inlet Connection Type: Bolt-on;clamp-on
Additional Fitment Information:
| Vehicle | Block | CC | Fuel Type | Engine | Body | CID |
|---|---|---|---|---|---|---|
| 2021 - GMC Sierra 2500 HD | V | 6599 | DIESEL | 8 Cyl 6.6L | Extended Cab Pickup | 403 |
- 3.5 in. Tubing; 5 in. Round Rolled Angle Cut Black Chrome Tip;50 State Legal / California Emissions Compliant
- S-Type Cat-Back™ Exhaust System; 3.5 in. Tubing; 5 in. Round Rolled Angle Cut Black Chrome Tip;
- S-Type Cat-Back™ Exhaust System
- Product Attributes:
- Exhaust Type:
- Axle-back
- Cat Back
- WARNING CA Proposition 65: Yes
- Exhaust Type:
-
Features:
- Unleash Hidden Horsepower
- Distinctive Borla Sound Of Power
- Absolute Best In Performance And Durability
- Ensure Maximum Flow And Power
- CNC Manufacturing Ensures An Accurate Fit
- EXCEPT Diesel engine. EXCEPT vehicles with Dual Rear Wheels. This system features the classic BORLA(R) S-Type sound and a 5 in. black chrome on T-304 stainless steel tip. Using BORLA(R) Stainless Steel Polish p# 21461 is NOT recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber cloth. A bright chrome on T-304 stainless steel tip is also available. BORLA(R) Cat-Back(TM) and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA(R) Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA(R) stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Bed Length | Body | CID |
|---|---|---|---|---|---|---|
| 2021 - GMC Sierra 2500 HD | V | 6571 | 8 Cyl 6.6L | 82.2 | Crew Cab Pickup | 401 |
- 3.5 in. Tubing; 5 in. Round Rolled Angle Cut Tip;50 State Legal / California Emissions Compliant
- S-Type Cat-Back™ Exhaust System; 3.5 in. Tubing; 5 in. Round Rolled Angle Cut Tip;
- S-Type Cat-Back™ Exhaust System
- Product Attributes:
- Exhaust Type:
- Axle-back
- Cat Back
- WARNING CA Proposition 65: Yes
- Exhaust Type:
-
Features:
- Unleash Hidden Horsepower
- Distinctive Borla Sound Of Power
- Absolute Best In Performance And Durability
- Ensure Maximum Flow And Power
- CNC Manufacturing Ensures An Accurate Fit
- EXCEPT Diesel engine. EXCEPT vehicles with Dual Rear Wheels. This system features the classic BORLA(R) S-Type sound and a 5 in. bright chrome on T-304 stainless steel tip. A black chrome on T-304 stainless steel tip is also available. BORLA(R) Cat-Back(TM) and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA(R) Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA(R) stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Bed Length | Body | CID |
|---|---|---|---|---|---|---|
| 2021 - GMC Sierra 2500 HD | V | 6571 | 8 Cyl 6.6L | 82.2 | Crew Cab Pickup | 401 |
- Dual; 3 in. Tubing; 3.5 in. ID.; 409S Stainless Steel/Natural/Brushed; 4.5 in. Dia./304 Stainless Steel/Black Ceramic Tip
- FlowFX Cat-Back Exhaust System; Dual; 3 in. Tubing; 3.5 in. ID.; 409S Stainless Steel/Natural/Brushed; 4.5 in. Dia./304 Stainless Steel/Black Ceramic Tip;
- FlowFX Cat-Back Exhaust System
- Product Attributes:
- Exhaust Type: Cat-back
- Exit Position: Dual Out Side
- Tip Diameter: 4.500 In.
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Muffler Body Length: 18.000 In.
-
Features:
- Offers An Aggressive To Moderate Sound Level And Increased Performance
- Includes Hangers And Hardware For An At Home Installation
- Factory Hangers Locations Used For An Easy Installation
- Covered By Out Lifetime Limited Warranty
- This Flowmaster[R] FlowFX[R] cat-back exhaust system for the 2020-2022 GM 2500HD/3500HD trucks with the 6.6 liter gas engine is manufactured using durable 409 stainless steel throughout and features 3.50 to dual 3.00 in. mandrel bent pipes for better exhaust gas flow, and a FlowFX straight-through muffler is used for a moderate sound level and maximum performance. Maximum increases on the dyno revealed plus 9 hp and plus 10 lb.-ft at the rear wheels. This system exits out both sides, behind the rear wheels with 4.50 in. black ceramic tips for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmasters Lifetime Limited Warranty.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Bed Length | Body | CID |
|---|---|---|---|---|---|---|
| 2021 - GMC Sierra 2500 HD | V | 6571 | 8 Cyl 6.6L | 82.2 | Crew Cab Pickup | 401 |
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