2021 GMC Sierra 3500 Exhaust Systems
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MBRP®Installer Series™ Aluminized Steel DPF-Back Exhaust System with Single Side ExitGMC Sierra 3500 Double Cab / Crew Cab Diesel 2021, Installer Series™ Aluminized Steel DPF-Back Exhaust System with Single Side Exit by MBRP®. Exhaust System Type: DPF-Back. Exhaust Tubing Material: Aluminized Steel. Main Tubing...$349.99 - Gibson®Extreme Dual™ Stainless Steel Cat-Back Exhaust System with Split Side ExitGMC Sierra 3500 98.2" Bed Crew Cab 2021, Extreme Dual™ Stainless Steel Cat-Back Exhaust System with Split Side Exit by Gibson®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3.5" to...$691.98$814.10Save $122.12 (15%)
- Flowmaster®American Thunder™ 409 SS Cat-Back Exhaust System with Split Rear/Side ExitGMC Sierra 3500 Crew Cab Gas 2021, American Thunder™ 409 SS Cat-Back Exhaust System with Split Rear/Side Exit by Flowmaster®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 3". Exhaust System...$963.95
- Gibson®Split Rear™ Stainless Steel Cat-Back Exhaust System with Split Rear ExitGMC Sierra 3500 98.2" Bed Crew Cab Diesel 2021, Split Rear™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit by Gibson®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3.5"...$691.98$814.10Save $122.12 (15%)
- Gibson®Stainless Steel Cat-Back Exhaust System with Single Side ExitGMC Sierra 3500 98.2" Bed Crew Cab 2021, Stainless Steel Cat-Back Exhaust System with Single Side Exit by Gibson®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3.5". Exhaust System...$659.32$748.57Save $89.25 (12%)
- Gibson®Black Elite™ Stainless Steel Cat-Back Exhaust System with Single Side ExitGMC Sierra 3500 98.2" Bed Crew Cab 2021, Black Elite™ Stainless Steel Cat-Back Exhaust System with Single Side Exit by Gibson®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3.5"....$655.37$771.03Save $115.66 (15%)
- Gibson®Black Elite™ Stainless Steel Cat-Back Exhaust System with Split Rear ExitGMC Sierra 3500 98.2" Bed Crew Cab Diesel 2021, Black Elite™ Stainless Steel Cat-Back Exhaust System with Split Rear Exit by Gibson®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.5"....$783.45$889.51Save $106.06 (12%)
- Gibson®Black Elite™ Stainless Steel Dual Extreme Cat-Back Exhaust System with Split Side ExitGMC Sierra 3500 98.2" Bed Crew Cab 2021, Black Elite™ Stainless Steel Dual Extreme Cat-Back Exhaust System with Split Side Exit by Gibson®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter:...$783.45$889.51Save $106.06 (12%)
- aFe®Large Bore HD™ 409 SS DPF-Back Exhaust System with Single Side ExitGMC Sierra 3500 Diesel 2021, Large Bore HD™ 409 SS DPF-Back Exhaust System with Single Side Exit by aFe®. Exhaust System Type: DPF-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 5". Exhaust System Sound: Aggressive /...$530.00 - $557.00
- aFe®Large Bore HD™ 409 SS DPF-Back Exhaust System with Split Side ExitGMC Sierra 3500 Diesel 2021, Large Bore HD™ 409 SS DPF-Back Exhaust System with Split Side Exit by aFe®. Exhaust System Type: DPF-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 4". Exhaust System Sound: Aggressive /...$712.00 - $785.00
- MBRP®Pro Series™ 304 SS Street Version Cat-Back Exhaust System with Single Side ExitGMC Sierra 3500 Gas 2021, Pro Series™ 304 SS Street Version Cat-Back Exhaust System with Single Side Exit by MBRP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 4". Exhaust System Sound:...$954.99
- MBRP®Armor Pro™ 409 SS DPF-Back Exhaust System with Single Side ExitGMC Sierra 3500 Double Cab / Crew Cab Diesel 2021, Armor Pro™ 409 SS DPF-Back Exhaust System with Single Side Exit by MBRP®. Exhaust System Type: DPF-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 5". Exhaust System...$534.99
- Flowmaster®Outlaw™ 409 SS Cat-Back Exhaust System with Split Rear/Side ExitGMC Sierra 3500 82.2" Bed Crew Cab 158.9" Wheelbase Gas 2021, Outlaw™ 409 SS Cat-Back Exhaust System with Split Rear/Side Exit by Flowmaster®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 3.5"...$850.95
- ACDelco®Genuine GM Parts™ Cast Iron Exhaust ManifoldGMC Sierra 3500 Diesel 2021, Genuine GM Parts™ Cast Iron Exhaust Manifold by ACDelco®. Position: Passenger Side. Collector Outlet Diameter: 1.81" (46.00 mm). Designed utilizing the latest technology, this product by ACDelco features...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$109.52
- MagnaFlow®Black Series™ Stainless Steel DPF-Back Exhaust System with Single Side ExitGMC Sierra 3500 Double Cab / Crew Cab Diesel 2021, Black Series™ Stainless Steel DPF-Back Exhaust System with Single Side Exit by MagnaFlow®. Exhaust System Type: DPF-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing...$1,043.00
- MBRP®Armor BLK™ Aluminized Steel DPF-Back Exhaust System with Single Side ExitGMC Sierra 3500 Double Cab / Crew Cab Diesel 2021, Armor BLK™ Aluminized Steel DPF-Back Exhaust System with Single Side Exit by MBRP®. Exhaust System Type: DPF-Back. Exhaust Tubing Material: Aluminized Steel. Main Tubing Diameter: 4"....$489.99
- MagnaFlow®Pro Series™ Stainless Steel DPF-Back Exhaust System with Single Side ExitGMC Sierra 3500 Double Cab / Crew Cab Diesel 2021, Pro Series™ Stainless Steel DPF-Back Exhaust System with Single Side Exit by MagnaFlow®. Exhaust System Type: DPF-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter:...$839.00
- aFe®Apollo GT Series™ 409 SS Cat-Back Exhaust System with Single Side ExitGMC Sierra 3500 Gas 2021, Apollo GT Series™ 409 SS Cat-Back Exhaust System with Single Side Exit by aFe®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 4". Exhaust System Sound: Moderate. Get...$585.00 - $712.00
- PPE®Exhaust Manifold with Up-PipesGMC Sierra 3500 2021, Exhaust Manifold with Up-Pipes by PPE®. PPE’s High-Flow Exhaust Manifolds and Up-Pipes have a 53% greater flow over stock and are 50 State emissions legal. PPE Manifolds are made from high-quality cast iron and...Thoughtfully designed to match your diesel engine needsMade to help enhance the performance of your vehicle$1,070.98 - $1,520.99
- ACDelco®Genuine GM Parts™ Exhaust Manifold GasketGMC Sierra 3500 Flex / Gas 2021, Genuine GM Parts™ Exhaust Manifold Gasket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$17.23
- Borla®304 SS Extension PipeGMC Sierra 3500 98.2" Bed Crew Cab 172.0" Wheelbase with Single Rear Wheels 2021, 304 SS Extension Pipe by Borla®. Keep your Borla exhaust system looking like the day you bought it with Borla Exhaust. It quickly cuts through dirt and...High quality at an affordable priceExpertly made from premium materials$145.99
- PPE®Exhaust Manifold Gasket SetGMC Sierra 3500 2021, Exhaust Manifold Gasket Set by PPE®. PPE is where engineering, design, and quality come together in perfect form. This superior product was crafted using modern manufacturing methods and high-grade materials to...Great way to improve the performance of your truckSynonymous with quality, efficiency, and dependability$26.99
- PPE®304 SS Polished Exhaust TipGMC Sierra 3500 Diesel 2021, 304 SS Polished Exhaust Tip by PPE®. PPE is where engineering, design, and quality come together in perfect form. This superior product was crafted using modern manufacturing methods and high-grade materials...Great way to improve the performance of your truckSynonymous with quality, efficiency, and dependability$89.99
- ACDelco®Genuine GM Parts™ Catalytic Converter GasketGMC Sierra 3500 Diesel 2021, Genuine GM Parts™ Catalytic Converter Gasket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$12.68
- ACDelco®Genuine GM Parts™ Exhaust System InsulatorGMC Sierra 3500 2021, Genuine GM Parts™ Exhaust System Insulator by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$18.98 - $26.46
- Walker Products®Oxygen SensorGMC Sierra 3500 Gas 2021, Oxygen Sensor by Walker Products®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$41.32 - $47.04
- ACDelco®Genuine GM Parts™ Oxygen SensorGMC Sierra 3500 Flex / Gas 2021, Genuine GM Parts™ Oxygen Sensor by ACDelco®. If your O2 sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s GM OE...ACDelco GM OE Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditionsDetects oxygen content in the exhaust gases$38.85 - $41.54
- Walker Products®Premium Oxygen SensorGMC Sierra 3500 Gas 2021, Premium Oxygen Sensor by Walker Products®. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements....Improved Engine Response & PerformanceLower Emissions$58.49
- Walker Products®Wideband Premium Oxygen SensorGMC Sierra 3500 Gas 2021, Wideband Premium Oxygen Sensor by Walker Products®. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test...High quality at an affordable priceExpertly made from premium materials$44.39
- AP Exhaust®Xlerator Performance Exhaust Muffler with Inlet/Outlet NeckUniversal Xlerator Performance Exhaust Muffler with Inlet/Outlet Neck by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not...Deep performance soundIncreased exhaust flow$25.34 - $62.13
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2021 GMC Sierra 3500 Exhaust Reviews
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SLP® - Loud Mouth™ Stainless Steel Round Bullet-Type Silver Exhaust Resonator (2.5" Center ID, 2.5" Center OD, 14" Length)Posted by Robert (Monroe, WI) / November 20, 20222000 Dodge Dakota